Merge branch 'develop' into codex/whatsapp-manual-connect-v2-guided

app/controllers/api/v1/accounts/whatsapp/manual_setup_controller.rb

@@ -0,0 +1,77 @@
+class Api::V1::Accounts::Whatsapp::ManualSetupController < Api::V1::Accounts::BaseController
+  before_action :authorize_create, only: [:preview, :connect]
+  before_action :fetch_inbox, only: [:webhook_status, :setup_webhook]
+
+  def preview
+    render json: validation_service.perform
+  rescue StandardError => e
+    render_setup_error(e)
+  end
+
+  def connect
+    setup = Whatsapp::ManualSetupService.new(account: Current.account, **connect_params.to_h.symbolize_keys).perform
+    render json: connection_response(setup), status: :created
+  rescue CustomExceptions::Inbox::LimitExceeded => e
+    render_error_response(e)
+  rescue StandardError => e
+    render_setup_error(e)
+  end
+
+  def webhook_status
+    render json: Whatsapp::ManualWebhookStatusService.new(@inbox.channel).perform
+  rescue StandardError => e
+    render_setup_error(e)
+  end
+
+  def setup_webhook
+    channel = @inbox.channel
+    Whatsapp::WebhookSetupService.new(channel).register_callback
+    render json: Whatsapp::ManualWebhookStatusService.new(channel.reload).perform
+  rescue StandardError => e
+    render_setup_error(e)
+  end
+
+  private
+
+  def authorize_create
+    authorize ::Inbox, :create?
+  end
+
+  def fetch_inbox
+    @inbox = Current.account.inboxes.find(params[:inbox_id])
+    authorize @inbox, :update?
+    channel = @inbox.channel
+    return if channel.is_a?(Channel::Whatsapp) && channel.provider_config['source'] == 'manual_setup_v2'
+
+    raise ActiveRecord::RecordNotFound
+  end
+
+  def validation_service
+    Whatsapp::ManualSetupValidationService.new(**connection_params.to_h.symbolize_keys)
+  end
+
+  def connection_params
+    params.permit(:waba_id, :phone_number_id, :access_token)
+  end
+
+  def connect_params
+    params.permit(:waba_id, :phone_number_id, :access_token, :inbox_name)
+  end
+
+  def connection_response(setup)
+    channel = setup.channel.reload
+    {
+      id: channel.inbox.id,
+      name: channel.inbox.name,
+      number_access: true,
+      template_access: true,
+      webhook_setup: setup.webhook_setup?,
+      webhook_error: setup.webhook_error
+    }
+  end
+
+  def render_setup_error(error)
+    Rails.logger.error "[WHATSAPP MANUAL SETUP] account_id=#{Current.account.id} error=#{error.class}: #{error.message}"
+    render json: { message: error.message }, status: :unprocessable_entity
+  end
+end

app/javascript/dashboard/api/channel/whatsappChannel.js

@@ -16,6 +16,26 @@ class WhatsappChannel extends ApiClient {
       inbox_id: inboxId,
     });
   }
+
+  previewManualSetup(params) {
+    return axios.post(`${this.baseUrl()}/whatsapp/manual/preview`, params);
+  }
+
+  connectManualSetup(params) {
+    return axios.post(`${this.baseUrl()}/whatsapp/manual/connect`, params);
+  }
+
+  getManualWebhookStatus(inboxId) {
+    return axios.get(
+      `${this.baseUrl()}/whatsapp/manual/${inboxId}/webhook_status`
+    );
+  }
+
+  setupManualWebhook(inboxId) {
+    return axios.post(
+      `${this.baseUrl()}/whatsapp/manual/${inboxId}/setup_webhook`
+    );
+  }
 }
 
 export default new WhatsappChannel();

app/javascript/dashboard/i18n/locale/en/inboxMgmt.json

@@ -293,6 +293,100 @@
           "WEBHOOK_URL": "Webhook URL",
           "WEBHOOK_VERIFICATION_TOKEN": "Webhook Verification Token"
         },
+        "MANUAL_SETUP": {
+          "HEADER": {
+            "TITLE": "Connect WhatsApp manually",
+            "DESCRIPTION": "Follow these steps to prepare your Meta account and connect your number to Chatwoot."
+          },
+          "APP": {
+            "TITLE": "Create or select a Meta app",
+            "DESCRIPTION": "Your WhatsApp number must belong to a Meta app with the WhatsApp use case enabled.",
+            "ITEM_1": "Open {metaDevelopers} and sign in with an administrator account.",
+            "META_DEVELOPERS": "Meta Developers",
+            "ITEM_2": "Create a new app, or select the app you already use for this WhatsApp number.",
+            "ITEM_3": "Choose the option to connect with customers through WhatsApp.",
+            "ITEM_4": "Select the business portfolio that owns, or will own, the WhatsApp number.",
+            "VIDEO_TITLE": "Watch: Create a Meta app",
+            "VIDEO_DESCRIPTION": "This short walkthrough shows where to start a new app in Meta Developers."
+          },
+          "NUMBER": {
+            "TITLE": "Add your phone number and get its IDs",
+            "DESCRIPTION": "Add and verify the production number in your Meta app, then copy the two identifiers shown in API Setup.",
+            "ITEM_1": "Open the WhatsApp use case in your Meta app and choose API Setup.",
+            "ITEM_2": "In the Send and receive messages section, open the From selector.",
+            "ITEM_3": "Select an existing production number, or choose Add phone number.",
+            "ITEM_4": "Complete the WhatsApp business profile requested by Meta.",
+            "ITEM_5": "Verify the phone number using the OTP sent by SMS or voice call.",
+            "ITEM_6": "Copy the Phone Number ID and WhatsApp Business Account ID shown in API Setup.",
+            "VIDEO_TITLE": "Watch: Add a phone number and find its IDs",
+            "VIDEO_DESCRIPTION": "This walkthrough shows how to add or select a production number and copy the identifiers from Meta."
+          },
+          "TOKEN": {
+            "TITLE": "Generate a permanent access token",
+            "DESCRIPTION": "Create a Meta system user with access to your app and WhatsApp Business Account.",
+            "ITEM_1": "Open Meta Business Settings and go to Users → System users.",
+            "ITEM_2": "Create an admin system user, or select an existing one.",
+            "ITEM_3": "Assign your Meta app and WhatsApp Business Account to the system user.",
+            "ITEM_4": "Grant full control for the assigned WhatsApp assets.",
+            "ITEM_5": "Generate a token for your Meta app and set its expiration to Never.",
+            "ITEM_6": "Select whatsapp_business_management and whatsapp_business_messaging, then copy the token.",
+            "VIDEO_TITLE": "Watch: Generate a permanent access token",
+            "VIDEO_DESCRIPTION": "This walkthrough shows how to select your Meta app, choose a non-expiring token, and grant the required WhatsApp permissions.",
+            "WARNING": "Meta shows the token only once. Copy it before closing the dialog."
+          },
+          "DETAILS": {
+            "WABA_LABEL": "WhatsApp Business Account ID",
+            "WABA_PLACEHOLDER": "Enter WABA ID",
+            "PHONE_ID_LABEL": "Phone Number ID",
+            "PHONE_ID_PLACEHOLDER": "Enter Phone Number ID",
+            "TOKEN_LABEL": "Permanent access token",
+            "TOKEN_PLACEHOLDER": "Paste access token"
+          },
+          "REVIEW": {
+            "TITLE": "Create your WhatsApp inbox",
+            "DESCRIPTION": "Review the number details and choose a name for the inbox.",
+            "VERIFIED": "Your Meta number and access token are valid.",
+            "BUSINESS_NAME": "Business name",
+            "PHONE_NUMBER": "Phone number",
+            "PHONE_ID": "Phone Number ID",
+            "WABA_ID": "WhatsApp Business Account ID",
+            "INBOX_NAME": "Inbox name",
+            "INBOX_NAME_HELP": "We generated this name from your verified Meta business name. You can change it."
+          },
+          "VERIFY": {
+            "TITLE": "Verify your connection",
+            "DESCRIPTION": "Chatwoot is checking number access and configuring your Meta webhook.",
+            "NUMBER_ACCESS": "Number access",
+            "TEMPLATE_ACCESS": "Template access",
+            "CALLBACK": "Webhook callback",
+            "SUBSCRIPTION": "Webhook subscription",
+            "WEBHOOK_URL": "Webhook URL",
+            "COPY": "Copy",
+            "COPY_SUCCESS": "Webhook URL copied to clipboard",
+            "COMPLETE": "Verified",
+            "PENDING": "Pending",
+            "SUCCESS": "Your WhatsApp number is connected and ready for agent assignment."
+          },
+          "ACTIONS": {
+            "BACK": "Back",
+            "OPEN_META_APPS": "Open Meta Apps",
+            "APP_READY": "My Meta app is ready",
+            "NEXT": "Next",
+            "OPEN_BUSINESS_SETTINGS": "Open Meta Business Settings",
+            "SHOW_TOKEN": "Show token",
+            "HIDE_TOKEN": "Hide token",
+            "VERIFY_DETAILS": "Verify details",
+            "CONNECT": "Create inbox",
+            "RETRY_WEBHOOK": "Retry webhook setup",
+            "CONTINUE": "Continue to add agents"
+          },
+          "ERRORS": {
+            "IDS_REQUIRED": "Enter the Phone Number ID and WhatsApp Business Account ID.",
+            "REQUIRED": "Enter the WABA ID, Phone Number ID, and permanent access token.",
+            "INVALID_TOKEN": "This access token is invalid or expired. Generate a new permanent token and try again.",
+            "GENERIC": "We could not complete the WhatsApp setup. Check your details and try again."
+          }
+        },
         "SUBMIT_BUTTON": "Create WhatsApp Channel",
         "EMBEDDED_SIGNUP": {
           "TITLE": "Quick setup with Meta",

app/javascript/dashboard/routes/dashboard/settings/inbox/FinishSetup.vue

@@ -49,9 +49,10 @@ const hasDuplicateInstagramInbox = computed(() => {
 });
 
 const shouldShowWhatsAppWebhookDetails = computed(() => {
+  const source = currentInbox.value.provider_config?.source;
   return (
     isAWhatsAppCloudChannel.value &&
-    currentInbox.value.provider_config?.source !== 'embedded_signup'
+    !['embedded_signup', 'manual_setup_v2'].includes(source)
   );
 });
 

app/javascript/dashboard/routes/dashboard/settings/inbox/InboxChannels.vue

@@ -69,7 +69,7 @@ const items = computed(() => {
         :global-config="globalConfig"
         :items="items"
       />
-      <div class="col-span-6 flex flex-col overflow-y-auto">
+      <div class="col-span-6 flex min-h-0 flex-col overflow-y-auto">
         <router-view />
       </div>
     </div>

app/javascript/dashboard/routes/dashboard/settings/inbox/channels/Whatsapp.vue

@@ -5,6 +5,7 @@ import { useI18n, I18nT } from 'vue-i18n';
 import Twilio from './Twilio.vue';
 import ThreeSixtyDialogWhatsapp from './360DialogWhatsapp.vue';
 import CloudWhatsapp from './CloudWhatsapp.vue';
+import WhatsappManualSetup from './WhatsappManualSetup.vue';
 import WhatsappEmbeddedSignup from './WhatsappEmbeddedSignup.vue';
 import ChannelSelector from 'dashboard/components/ChannelSelector.vue';
 import { useAccount } from 'dashboard/composables/useAccount';
@@ -79,14 +80,21 @@ const shouldShowCloudWhatsapp = provider => {
   );
 };
 
+const isManualSetup = computed(
+  () =>
+    showConfiguration.value && shouldShowCloudWhatsapp(selectedProvider.value)
+);
+
 const handleManualLinkClick = () => {
   selectProvider(PROVIDER_TYPES.WHATSAPP_MANUAL);
 };
 </script>
 
 <template>
-  <div class="overflow-auto col-span-6 p-6 w-full h-full">
-    <div v-if="showProviderSelection">
+  <div class="col-span-6 w-full h-full min-h-0 overflow-y-auto p-6">
+    <WhatsappManualSetup v-if="isManualSetup" />
+
+    <div v-else-if="showProviderSelection">
       <div class="mb-10 text-left">
         <h1 class="mb-2 text-lg font-medium text-n-slate-12">
           {{ $t('INBOX_MGMT.ADD.WHATSAPP.SELECT_PROVIDER.TITLE') }}
@@ -137,9 +145,6 @@ const handleManualLinkClick = () => {
           </div>
         </div>
 
-        <!-- Show manual setup -->
-        <CloudWhatsapp v-else-if="shouldShowCloudWhatsapp(selectedProvider)" />
-
         <!-- Other providers -->
         <Twilio
           v-else-if="selectedProvider === PROVIDER_TYPES.TWILIO"

app/javascript/dashboard/routes/dashboard/settings/inbox/channels/WhatsappManualSetup.vue

@@ -0,0 +1,826 @@
+<script setup>
+import { computed, nextTick, onBeforeUnmount, reactive, ref } from 'vue';
+import { I18nT, useI18n } from 'vue-i18n';
+import { useRoute, useRouter } from 'vue-router';
+import { useStore } from 'vuex';
+
+import WhatsappChannelAPI from 'dashboard/api/channel/whatsappChannel';
+import Button from 'dashboard/components-next/button/Button.vue';
+import Icon from 'dashboard/components-next/icon/Icon.vue';
+import Input from 'dashboard/components-next/input/Input.vue';
+import { useAlert } from 'dashboard/composables';
+import { copyTextToClipboard } from 'shared/helpers/clipboard';
+
+const { t } = useI18n();
+const route = useRoute();
+const router = useRouter();
+const store = useStore();
+
+const TOTAL_STEPS = 5;
+const POLL_INTERVAL = 2000;
+const MAX_POLL_ATTEMPTS = 5;
+const META_APPS_URL = 'https://developers.facebook.com/apps/';
+const META_BUSINESS_SETTINGS_URL =
+  'https://business.facebook.com/settings/system-users/';
+const CREATE_APP_VIDEO_URL =
+  '/videos/whatsapp/manual-setup/create-meta-app.mp4';
+const CREATE_APP_VIDEO_POSTER_URL =
+  '/videos/whatsapp/manual-setup/create-meta-app-poster.jpg';
+const ADD_NUMBER_VIDEO_URL =
+  '/videos/whatsapp/manual-setup/add-phone-number.mp4';
+const ADD_NUMBER_VIDEO_POSTER_URL =
+  '/videos/whatsapp/manual-setup/add-phone-number-poster.jpg';
+const GENERATE_TOKEN_VIDEO_URL =
+  '/videos/whatsapp/manual-setup/generate-access-token.mp4';
+const GENERATE_TOKEN_VIDEO_POSTER_URL =
+  '/videos/whatsapp/manual-setup/generate-access-token-poster.jpg';
+
+const currentStep = ref(1);
+const isLoading = ref(false);
+const errorMessage = ref('');
+const inboxId = ref(null);
+const pollTimer = ref(null);
+const showAccessToken = ref(false);
+const setupRoot = ref(null);
+
+const form = reactive({
+  wabaId: '',
+  phoneNumberId: '',
+  accessToken: '',
+  inboxName: '',
+});
+
+const preview = ref(null);
+const connection = reactive({
+  numberAccess: false,
+  templateAccess: false,
+  webhookSetup: false,
+  callbackVerified: false,
+  callbackConfigured: false,
+  callbackUrl: '',
+  subscriptionVerified: false,
+});
+
+const idsComplete = computed(
+  () => form.wabaId.trim() && form.phoneNumberId.trim()
+);
+
+const detailsComplete = computed(
+  () => idsComplete.value && form.accessToken.trim()
+);
+
+const connectionReady = computed(
+  () =>
+    connection.numberAccess &&
+    connection.templateAccess &&
+    connection.webhookSetup &&
+    connection.callbackVerified &&
+    connection.callbackConfigured &&
+    connection.subscriptionVerified
+);
+
+const progressSteps = computed(() =>
+  Array.from({ length: TOTAL_STEPS }, (_, index) => index + 1)
+);
+
+const appInstructions = computed(() => [
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.ITEM_2'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.ITEM_3'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.ITEM_4'),
+]);
+
+const numberInstructions = computed(() => [
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.ITEM_1'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.ITEM_2'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.ITEM_3'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.ITEM_4'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.ITEM_5'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.ITEM_6'),
+]);
+
+const tokenInstructions = computed(() => [
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.ITEM_1'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.ITEM_2'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.ITEM_3'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.ITEM_4'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.ITEM_5'),
+  t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.ITEM_6'),
+]);
+
+const statusRows = computed(() => [
+  {
+    key: 'number',
+    label: t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.NUMBER_ACCESS'),
+    complete: connection.numberAccess,
+  },
+  {
+    key: 'templates',
+    label: t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.TEMPLATE_ACCESS'),
+    complete: connection.templateAccess,
+  },
+  {
+    key: 'callback',
+    label: t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.CALLBACK'),
+    complete:
+      connection.webhookSetup &&
+      connection.callbackConfigured &&
+      connection.callbackVerified,
+  },
+  {
+    key: 'subscription',
+    label: t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.SUBSCRIPTION'),
+    complete: connection.subscriptionVerified,
+  },
+]);
+
+const apiErrorMessage = error => {
+  const message = error.response?.data?.message || '';
+  if (/invalid oauth access token|cannot parse access token/i.test(message)) {
+    return t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ERRORS.INVALID_TOKEN');
+  }
+
+  return message || t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ERRORS.GENERIC');
+};
+
+const setStep = step => {
+  errorMessage.value = '';
+  currentStep.value = step;
+  nextTick(() => setupRoot.value?.scrollIntoView({ block: 'start' }));
+};
+
+const returnToProviders = () => {
+  router.push({
+    name: route.name,
+    params: route.params,
+    query: {},
+  });
+};
+
+const goBack = () => {
+  if (currentStep.value > 1) {
+    setStep(currentStep.value - 1);
+    return;
+  }
+
+  returnToProviders();
+};
+
+const continueFromIds = () => {
+  if (!idsComplete.value) {
+    errorMessage.value = t(
+      'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ERRORS.IDS_REQUIRED'
+    );
+    return;
+  }
+
+  setStep(3);
+};
+
+const verifyDetails = async () => {
+  if (!detailsComplete.value) {
+    errorMessage.value = t(
+      'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ERRORS.REQUIRED'
+    );
+    return;
+  }
+
+  isLoading.value = true;
+  errorMessage.value = '';
+  try {
+    const { data } = await WhatsappChannelAPI.previewManualSetup({
+      waba_id: form.wabaId.trim(),
+      phone_number_id: form.phoneNumberId.trim(),
+      access_token: form.accessToken.trim(),
+    });
+    preview.value = data;
+    form.inboxName = data.suggested_inbox_name;
+    setStep(4);
+  } catch (error) {
+    errorMessage.value = apiErrorMessage(error);
+  } finally {
+    isLoading.value = false;
+  }
+};
+
+const applyWebhookStatus = status => {
+  connection.callbackVerified = Boolean(status.callback_verified);
+  connection.callbackConfigured = Boolean(status.callback_configured);
+  connection.callbackUrl = status.callback_url || '';
+  connection.subscriptionVerified = Boolean(status.subscription_verified);
+};
+
+const copyWebhookUrl = async () => {
+  await copyTextToClipboard(connection.callbackUrl);
+  useAlert(t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.COPY_SUCCESS'));
+};
+
+const refreshWebhookStatus = async ({ showError = true } = {}) => {
+  if (!inboxId.value) return;
+
+  try {
+    const { data } = await WhatsappChannelAPI.getManualWebhookStatus(
+      inboxId.value
+    );
+    applyWebhookStatus(data);
+  } catch (error) {
+    if (showError) errorMessage.value = apiErrorMessage(error);
+  }
+};
+
+const pollWebhookStatus = async attempt => {
+  await refreshWebhookStatus({ showError: false });
+  if (connectionReady.value || attempt >= MAX_POLL_ATTEMPTS) return;
+
+  pollTimer.value = window.setTimeout(
+    () => pollWebhookStatus(attempt + 1),
+    POLL_INTERVAL
+  );
+};
+
+const connectNumber = async () => {
+  isLoading.value = true;
+  errorMessage.value = '';
+  try {
+    const { data } = await WhatsappChannelAPI.connectManualSetup({
+      waba_id: form.wabaId.trim(),
+      phone_number_id: form.phoneNumberId.trim(),
+      access_token: form.accessToken.trim(),
+      inbox_name: form.inboxName.trim(),
+    });
+    inboxId.value = data.id;
+    connection.numberAccess = Boolean(data.number_access);
+    connection.templateAccess = Boolean(data.template_access);
+    connection.webhookSetup = Boolean(data.webhook_setup);
+    if (data.webhook_error) errorMessage.value = data.webhook_error;
+    currentStep.value = 5;
+    await pollWebhookStatus(1);
+  } catch (error) {
+    errorMessage.value = apiErrorMessage(error);
+  } finally {
+    isLoading.value = false;
+  }
+};
+
+const retryWebhookSetup = async () => {
+  isLoading.value = true;
+  errorMessage.value = '';
+  try {
+    const { data } = await WhatsappChannelAPI.setupManualWebhook(inboxId.value);
+    connection.webhookSetup = true;
+    applyWebhookStatus(data);
+    if (!connectionReady.value) await pollWebhookStatus(1);
+  } catch (error) {
+    errorMessage.value = apiErrorMessage(error);
+  } finally {
+    isLoading.value = false;
+  }
+};
+
+const continueToAgents = async () => {
+  await store.dispatch('inboxes/get');
+  router.replace({
+    name: 'settings_inboxes_add_agents',
+    params: { page: 'new', inbox_id: inboxId.value },
+  });
+};
+
+onBeforeUnmount(() => {
+  if (pollTimer.value) window.clearTimeout(pollTimer.value);
+});
+</script>
+
+<template>
+  <div
+    ref="setupRoot"
+    class="mx-auto flex w-full max-w-6xl flex-col gap-4 py-2"
+  >
+    <div class="px-1">
+      <div class="min-w-0 flex-1">
+        <h1 class="text-heading-1 text-n-slate-12">
+          {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.HEADER.TITLE') }}
+        </h1>
+        <p class="mt-1 text-body-main text-n-slate-11">
+          {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.HEADER.DESCRIPTION') }}
+        </p>
+      </div>
+    </div>
+
+    <div
+      class="rounded-2xl border border-n-weak bg-n-background p-5 shadow-sm sm:p-6"
+    >
+      <div class="flex justify-end">
+        <div class="grid w-40 grid-cols-5 gap-1.5">
+          <div
+            v-for="step in progressSteps"
+            :key="step"
+            class="h-1.5 rounded-full"
+            :class="step <= currentStep ? 'bg-n-brand' : 'bg-n-alpha-3'"
+          />
+        </div>
+      </div>
+
+      <div
+        v-if="errorMessage && currentStep !== 3"
+        class="mt-6 rounded-lg border border-n-ruby-5 bg-n-ruby-3 px-4 py-3 text-sm text-n-ruby-11"
+      >
+        {{ errorMessage }}
+      </div>
+
+      <section v-if="currentStep === 1" class="mt-3 grid gap-5 lg:grid-cols-2">
+        <div class="lg:col-span-2">
+          <h2 class="text-heading-2 text-n-slate-12">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.TITLE') }}
+          </h2>
+          <p class="mt-2 max-w-3xl text-body-main text-n-slate-11">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.DESCRIPTION') }}
+          </p>
+        </div>
+
+        <ol
+          class="ml-5 list-decimal space-y-3 text-body-main text-n-slate-11 marker:font-medium marker:text-n-slate-12"
+        >
+          <li class="pl-2">
+            <I18nT
+              keypath="INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.ITEM_1"
+              tag="span"
+            >
+              <template #metaDevelopers>
+                <a
+                  :href="META_APPS_URL"
+                  target="_blank"
+                  rel="noopener noreferrer"
+                  class="font-medium text-n-brand hover:underline"
+                >
+                  {{
+                    $t(
+                      'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.META_DEVELOPERS'
+                    )
+                  }}
+                </a>
+              </template>
+            </I18nT>
+          </li>
+          <li
+            v-for="instruction in appInstructions"
+            :key="instruction"
+            class="pl-2"
+          >
+            {{ instruction }}
+          </li>
+        </ol>
+
+        <figure
+          class="self-start overflow-hidden rounded-xl border border-n-weak"
+        >
+          <video
+            class="block w-full bg-n-solid-1"
+            controls
+            muted
+            playsinline
+            preload="metadata"
+            :poster="CREATE_APP_VIDEO_POSTER_URL"
+            :aria-label="
+              $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.VIDEO_TITLE')
+            "
+          >
+            <source :src="CREATE_APP_VIDEO_URL" type="video/mp4" />
+          </video>
+          <figcaption class="border-t border-n-weak bg-n-alpha-1 px-4 py-3">
+            <p class="text-sm font-medium text-n-slate-12">
+              {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.APP.VIDEO_TITLE') }}
+            </p>
+          </figcaption>
+        </figure>
+
+        <div
+          class="flex items-center justify-between border-t border-n-weak pt-5 lg:col-span-2"
+        >
+          <Button
+            :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.BACK')"
+            variant="outline"
+            color="slate"
+            @click="goBack"
+          />
+          <Button
+            :label="
+              $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.APP_READY')
+            "
+            trailing-icon
+            icon="i-lucide-arrow-right"
+            @click="setStep(2)"
+          />
+        </div>
+      </section>
+
+      <section
+        v-else-if="currentStep === 2"
+        class="mt-3 grid gap-5 lg:grid-cols-2"
+      >
+        <div class="lg:col-span-2">
+          <h2 class="text-heading-2 text-n-slate-12">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.TITLE') }}
+          </h2>
+          <p class="mt-2 max-w-3xl text-body-main text-n-slate-11">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.DESCRIPTION') }}
+          </p>
+        </div>
+
+        <ol
+          class="ml-5 list-decimal space-y-3 text-body-main text-n-slate-11 marker:font-medium marker:text-n-slate-12"
+        >
+          <li
+            v-for="instruction in numberInstructions"
+            :key="instruction"
+            class="pl-2"
+          >
+            {{ instruction }}
+          </li>
+        </ol>
+
+        <div class="flex min-w-0 flex-col gap-4">
+          <figure class="overflow-hidden rounded-xl border border-n-weak">
+            <video
+              class="block w-full bg-n-solid-1"
+              controls
+              muted
+              playsinline
+              preload="metadata"
+              :poster="ADD_NUMBER_VIDEO_POSTER_URL"
+              :aria-label="
+                $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.VIDEO_TITLE')
+              "
+            >
+              <source :src="ADD_NUMBER_VIDEO_URL" type="video/mp4" />
+            </video>
+            <figcaption class="border-t border-n-weak bg-n-alpha-1 px-4 py-3">
+              <p class="text-sm font-medium text-n-slate-12">
+                {{
+                  $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.NUMBER.VIDEO_TITLE')
+                }}
+              </p>
+            </figcaption>
+          </figure>
+
+          <a
+            :href="META_APPS_URL"
+            target="_blank"
+            rel="noopener noreferrer"
+            class="inline-flex w-fit items-center gap-2 text-sm font-medium text-n-brand hover:underline"
+          >
+            {{
+              $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.OPEN_META_APPS')
+            }}
+            <Icon icon="i-lucide-external-link" />
+          </a>
+        </div>
+
+        <div
+          class="grid gap-5 rounded-xl border border-n-weak p-5 lg:col-span-2 lg:grid-cols-2"
+        >
+          <Input
+            v-model="form.phoneNumberId"
+            :label="
+              $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.DETAILS.PHONE_ID_LABEL')
+            "
+            :placeholder="
+              $t(
+                'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.DETAILS.PHONE_ID_PLACEHOLDER'
+              )
+            "
+          />
+          <Input
+            v-model="form.wabaId"
+            :label="
+              $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.DETAILS.WABA_LABEL')
+            "
+            :placeholder="
+              $t(
+                'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.DETAILS.WABA_PLACEHOLDER'
+              )
+            "
+          />
+        </div>
+
+        <div
+          class="flex items-center justify-between border-t border-n-weak pt-5 lg:col-span-2"
+        >
+          <Button
+            :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.BACK')"
+            variant="outline"
+            color="slate"
+            @click="goBack"
+          />
+          <Button
+            :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.NEXT')"
+            trailing-icon
+            icon="i-lucide-arrow-right"
+            @click="continueFromIds"
+          />
+        </div>
+      </section>
+
+      <section
+        v-else-if="currentStep === 3"
+        class="mt-3 grid gap-5 lg:grid-cols-2"
+      >
+        <div class="lg:col-span-2">
+          <h2 class="text-heading-2 text-n-slate-12">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.TITLE') }}
+          </h2>
+          <p class="mt-2 max-w-3xl text-body-main text-n-slate-11">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.DESCRIPTION') }}
+          </p>
+        </div>
+
+        <ol
+          class="ml-5 list-decimal space-y-3 text-body-main text-n-slate-11 marker:font-medium marker:text-n-slate-12"
+        >
+          <li
+            v-for="instruction in tokenInstructions"
+            :key="instruction"
+            class="pl-2"
+          >
+            {{ instruction }}
+          </li>
+        </ol>
+
+        <div class="flex min-w-0 flex-col gap-4">
+          <figure class="overflow-hidden rounded-xl border border-n-weak">
+            <video
+              class="block w-full bg-n-solid-1"
+              controls
+              muted
+              playsinline
+              preload="metadata"
+              :poster="GENERATE_TOKEN_VIDEO_POSTER_URL"
+              :aria-label="
+                $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.VIDEO_TITLE')
+              "
+            >
+              <source :src="GENERATE_TOKEN_VIDEO_URL" type="video/mp4" />
+            </video>
+            <figcaption class="border-t border-n-weak bg-n-alpha-1 px-4 py-3">
+              <p class="text-sm font-medium text-n-slate-12">
+                {{
+                  $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.VIDEO_TITLE')
+                }}
+              </p>
+            </figcaption>
+          </figure>
+
+          <a
+            :href="META_BUSINESS_SETTINGS_URL"
+            target="_blank"
+            rel="noopener noreferrer"
+            class="inline-flex w-fit items-center gap-2 text-sm font-medium text-n-brand hover:underline"
+          >
+            {{
+              $t(
+                'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.OPEN_BUSINESS_SETTINGS'
+              )
+            }}
+            <Icon icon="i-lucide-external-link" />
+          </a>
+        </div>
+
+        <div class="rounded-xl border border-n-weak p-5 lg:col-span-2">
+          <div class="grid items-start gap-3 sm:grid-cols-[1fr_auto]">
+            <Input
+              v-model="form.accessToken"
+              :type="showAccessToken ? 'text' : 'password'"
+              autocomplete="off"
+              :label="
+                $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.DETAILS.TOKEN_LABEL')
+              "
+              :placeholder="
+                $t(
+                  'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.DETAILS.TOKEN_PLACEHOLDER'
+                )
+              "
+              :message="errorMessage"
+              message-type="error"
+              @update:model-value="errorMessage = ''"
+            />
+            <Button
+              :label="
+                showAccessToken
+                  ? $t(
+                      'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.HIDE_TOKEN'
+                    )
+                  : $t(
+                      'INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.SHOW_TOKEN'
+                    )
+              "
+              variant="outline"
+              color="slate"
+              class="sm:mt-7"
+              @click="showAccessToken = !showAccessToken"
+            />
+          </div>
+          <p
+            v-if="!errorMessage"
+            class="mt-3 flex items-start gap-2 text-sm text-n-amber-11"
+          >
+            <Icon icon="i-lucide-triangle-alert" class="mt-0.5 shrink-0" />
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.TOKEN.WARNING') }}
+          </p>
+        </div>
+
+        <div
+          class="flex items-center justify-between border-t border-n-weak pt-5 lg:col-span-2"
+        >
+          <Button
+            :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.BACK')"
+            variant="outline"
+            color="slate"
+            @click="goBack"
+          />
+          <Button
+            :label="
+              $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.VERIFY_DETAILS')
+            "
+            :is-loading="isLoading"
+            :disabled="isLoading"
+            @click="verifyDetails"
+          />
+        </div>
+      </section>
+
+      <section v-else-if="currentStep === 4" class="mt-3 flex flex-col gap-5">
+        <div>
+          <h2 class="text-heading-2 text-n-slate-12">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.TITLE') }}
+          </h2>
+          <p class="mt-2 max-w-3xl text-body-main text-n-slate-11">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.DESCRIPTION') }}
+          </p>
+        </div>
+
+        <div
+          class="rounded-xl border border-n-teal-5 bg-n-teal-3 px-4 py-3 text-sm text-n-teal-11"
+        >
+          <div class="flex items-center gap-2 font-medium">
+            <Icon icon="i-lucide-badge-check" />
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.VERIFIED') }}
+          </div>
+        </div>
+
+        <dl class="divide-y divide-n-weak rounded-xl border border-n-weak px-5">
+          <div class="grid grid-cols-2 gap-4 py-4">
+            <dt class="text-sm text-n-slate-11">
+              {{
+                $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.BUSINESS_NAME')
+              }}
+            </dt>
+            <dd class="text-sm font-medium text-n-slate-12">
+              {{ preview.verified_name || preview.display_phone_number }}
+            </dd>
+          </div>
+          <div class="grid grid-cols-2 gap-4 py-4">
+            <dt class="text-sm text-n-slate-11">
+              {{
+                $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.PHONE_NUMBER')
+              }}
+            </dt>
+            <dd class="text-sm font-medium text-n-slate-12">
+              {{ preview.display_phone_number }}
+            </dd>
+          </div>
+          <div class="grid grid-cols-2 gap-4 py-4">
+            <dt class="text-sm text-n-slate-11">
+              {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.PHONE_ID') }}
+            </dt>
+            <dd class="text-sm font-medium text-n-slate-12">
+              {{ preview.phone_number_id }}
+            </dd>
+          </div>
+          <div class="grid grid-cols-2 gap-4 py-4">
+            <dt class="text-sm text-n-slate-11">
+              {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.WABA_ID') }}
+            </dt>
+            <dd class="text-sm font-medium text-n-slate-12">
+              {{ preview.waba_id }}
+            </dd>
+          </div>
+        </dl>
+
+        <Input
+          v-model="form.inboxName"
+          :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.INBOX_NAME')"
+          :message="
+            $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.REVIEW.INBOX_NAME_HELP')
+          "
+        />
+
+        <div
+          class="flex items-center justify-between border-t border-n-weak pt-5"
+        >
+          <Button
+            :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.BACK')"
+            variant="outline"
+            color="slate"
+            @click="goBack"
+          />
+          <Button
+            :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.CONNECT')"
+            :is-loading="isLoading"
+            :disabled="isLoading || !form.inboxName.trim()"
+            @click="connectNumber"
+          />
+        </div>
+      </section>
+
+      <section v-else class="mt-3 flex flex-col gap-5">
+        <div>
+          <h2 class="text-heading-2 text-n-slate-12">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.TITLE') }}
+          </h2>
+          <p class="mt-2 max-w-3xl text-body-main text-n-slate-11">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.DESCRIPTION') }}
+          </p>
+        </div>
+
+        <div
+          v-if="connection.callbackUrl"
+          class="rounded-xl border border-n-weak p-5"
+        >
+          <p class="text-sm font-medium text-n-slate-12">
+            {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.WEBHOOK_URL') }}
+          </p>
+          <div class="mt-3 flex items-center gap-3">
+            <code
+              class="min-w-0 flex-1 break-all rounded-lg bg-n-alpha-1 px-3 py-2.5 text-sm text-n-slate-12"
+            >
+              {{ connection.callbackUrl }}
+            </code>
+            <Button
+              :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.COPY')"
+              icon="i-lucide-copy"
+              variant="outline"
+              color="slate"
+              @click="copyWebhookUrl"
+            />
+          </div>
+        </div>
+
+        <div
+          class="flex flex-col divide-y divide-n-weak rounded-xl border border-n-weak px-5"
+        >
+          <div
+            v-for="status in statusRows"
+            :key="status.key"
+            class="flex items-center justify-between py-4"
+          >
+            <span class="text-sm font-medium text-n-slate-12">
+              {{ status.label }}
+            </span>
+            <span
+              class="flex items-center gap-2 text-sm"
+              :class="status.complete ? 'text-n-teal-11' : 'text-n-amber-11'"
+            >
+              <Icon
+                :icon="
+                  status.complete ? 'i-lucide-check-circle' : 'i-lucide-clock-3'
+                "
+              />
+              {{
+                status.complete
+                  ? $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.COMPLETE')
+                  : $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.PENDING')
+              }}
+            </span>
+          </div>
+        </div>
+
+        <p
+          v-if="connectionReady"
+          class="rounded-lg bg-n-teal-3 px-4 py-3 text-sm text-n-teal-11"
+        >
+          {{ $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.VERIFY.SUCCESS') }}
+        </p>
+
+        <div
+          class="flex items-center justify-between border-t border-n-weak pt-5"
+        >
+          <Button
+            :label="
+              $t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.RETRY_WEBHOOK')
+            "
+            variant="outline"
+            color="slate"
+            :is-loading="isLoading"
+            :disabled="isLoading"
+            @click="retryWebhookSetup"
+          />
+          <Button
+            :label="$t('INBOX_MGMT.ADD.WHATSAPP.MANUAL_SETUP.ACTIONS.CONTINUE')"
+            trailing-icon
+            icon="i-lucide-arrow-right"
+            :disabled="isLoading"
+            @click="continueToAgents"
+          />
+        </div>
+      </section>
+    </div>
+  </div>
+</template>

app/models/channel/whatsapp.rb

@@ -160,8 +160,9 @@ class Channel::Whatsapp < ApplicationRecord
   end
 
   def should_auto_setup_webhooks?
-    # Only auto-setup webhooks for whatsapp_cloud provider with manual setup
-    # Embedded signup calls setup_webhooks explicitly in EmbeddedSignupService
-    provider == 'whatsapp_cloud' && provider_config['source'] != 'embedded_signup'
+    # Embedded signup and Manual V2 run webhook setup explicitly so their API
+    # responses can reflect the real result instead of swallowing callback errors.
+    explicitly_configured_sources = %w[embedded_signup manual_setup_v2]
+    provider == 'whatsapp_cloud' && explicitly_configured_sources.exclude?(provider_config['source'])
   end
 end

app/services/whatsapp/facebook_api_client.rb

@@ -30,6 +30,54 @@ class Whatsapp::FacebookApiClient
     handle_response(response, 'WABA phone numbers fetch failed')
   end
 
+  def fetch_all_phone_numbers(waba_id)
+    phone_numbers = []
+    after_cursor = nil
+
+    loop do
+      response = HTTParty.get(
+        "#{BASE_URI}/#{@api_version}/#{waba_id}/phone_numbers",
+        headers: request_headers,
+        query: after_cursor.present? ? { after: after_cursor } : {}
+      )
+      data = handle_response(response, 'WABA phone numbers fetch failed')
+      phone_numbers.concat(data['data'] || [])
+      after_cursor = data.dig('paging', 'cursors', 'after') if data.dig('paging', 'next').present?
+      break if after_cursor.blank?
+    end
+
+    phone_numbers
+  end
+
+  def fetch_message_templates(waba_id)
+    response = HTTParty.get(
+      "#{BASE_URI}/#{@api_version}/#{waba_id}/message_templates",
+      headers: request_headers,
+      query: { limit: 1 }
+    )
+
+    handle_response(response, 'WABA message templates fetch failed')
+  end
+
+  def fetch_subscribed_apps(waba_id)
+    response = HTTParty.get(
+      "#{BASE_URI}/#{@api_version}/#{waba_id}/subscribed_apps",
+      headers: request_headers
+    )
+
+    handle_response(response, 'WABA webhook subscription fetch failed')
+  end
+
+  def fetch_phone_number(phone_number_id, fields: nil)
+    response = HTTParty.get(
+      "#{BASE_URI}/#{@api_version}/#{phone_number_id}",
+      headers: request_headers,
+      query: fields.present? ? { fields: fields } : {}
+    )
+
+    handle_response(response, 'Phone number fetch failed')
+  end
+
   def debug_token(input_token)
     response = HTTParty.get(
       "#{BASE_URI}/#{@api_version}/debug_token",

app/services/whatsapp/manual_setup_service.rb

@@ -0,0 +1,57 @@
+class Whatsapp::ManualSetupService
+  attr_reader :channel, :webhook_error
+
+  def initialize(account:, waba_id:, phone_number_id:, access_token:, inbox_name: nil)
+    @account = account
+    @waba_id = waba_id
+    @phone_number_id = phone_number_id
+    @access_token = access_token
+    @inbox_name = inbox_name
+  end
+
+  def perform
+    preview = validate_setup
+    create_channel_and_inbox(preview)
+    setup_webhook
+    self
+  end
+
+  def webhook_setup?
+    webhook_error.blank?
+  end
+
+  private
+
+  def validate_setup
+    Whatsapp::ManualSetupValidationService.new(
+      waba_id: @waba_id,
+      phone_number_id: @phone_number_id,
+      access_token: @access_token
+    ).perform
+  end
+
+  def create_channel_and_inbox(preview)
+    ActiveRecord::Base.transaction do
+      @channel = @account.whatsapp_channels.create!(
+        phone_number: preview[:display_phone_number],
+        provider: 'whatsapp_cloud',
+        provider_config: {
+          api_key: @access_token,
+          phone_number_id: preview[:phone_number_id],
+          business_account_id: preview[:waba_id],
+          source: 'manual_setup_v2'
+        }
+      )
+      @account.inboxes.create!(
+        name: @inbox_name.to_s.strip.presence || preview[:suggested_inbox_name],
+        channel: @channel
+      )
+    end
+  end
+
+  def setup_webhook
+    Whatsapp::WebhookSetupService.new(@channel, @waba_id, @access_token).register_callback
+  rescue StandardError => e
+    @webhook_error = e.message
+  end
+end

app/services/whatsapp/manual_setup_validation_service.rb

@@ -0,0 +1,79 @@
+class Whatsapp::ManualSetupValidationService
+  LOG_PREFIX = '[WHATSAPP MANUAL SETUP]'.freeze
+
+  def initialize(waba_id:, phone_number_id:, access_token:)
+    @waba_id = waba_id
+    @phone_number_id = phone_number_id
+    @access_token = access_token
+    @api_client = Whatsapp::FacebookApiClient.new(access_token)
+  end
+
+  def perform
+    validate_parameters!
+    Rails.logger.info "#{LOG_PREFIX} Validation started waba_id=#{@waba_id} phone_number_id=#{@phone_number_id}"
+
+    phone_data = find_phone_data!
+    verify_uniqueness!(phone_data)
+    verify_template_access!
+
+    build_preview(phone_data)
+  end
+
+  private
+
+  def validate_parameters!
+    raise ArgumentError, 'WABA ID is required' if @waba_id.blank?
+    raise ArgumentError, 'Phone Number ID is required' if @phone_number_id.blank?
+    raise ArgumentError, 'Access token is required' if @access_token.blank?
+  end
+
+  def find_phone_data!
+    phone_numbers = @api_client.fetch_all_phone_numbers(@waba_id)
+    returned_phone_number_ids = phone_numbers.filter_map { |phone| phone['id'] }.join(',')
+    Rails.logger.info "#{LOG_PREFIX} Meta returned #{phone_numbers.size} phone number(s) for waba_id=#{@waba_id} " \
+                      "phone_number_ids=#{returned_phone_number_ids}"
+
+    phone_data = phone_numbers.find { |phone| phone['id'].to_s == @phone_number_id.to_s }
+    raise ArgumentError, 'This Phone Number ID does not belong to the WABA ID you entered.' if phone_data.blank?
+
+    Rails.logger.info "#{LOG_PREFIX} Matched phone_number_id=#{@phone_number_id} fields=#{phone_data.keys.sort.join(',')} " \
+                      "code_verification_status=#{phone_data['code_verification_status'].inspect} " \
+                      "name_status=#{phone_data['name_status'].inspect}"
+
+    phone_data
+  end
+
+  def verify_uniqueness!(phone_data)
+    phone_number = normalized_phone_number(phone_data['display_phone_number'])
+    raise ArgumentError, 'This WhatsApp number is already connected to another inbox.' if Channel::Whatsapp.exists?(phone_number: phone_number)
+
+    duplicate_phone_id = Channel::Whatsapp.exists?(["provider_config->>'phone_number_id' = ?", @phone_number_id.to_s])
+    raise ArgumentError, 'This Phone Number ID is already used by another WhatsApp inbox.' if duplicate_phone_id
+  end
+
+  def verify_template_access!
+    @api_client.fetch_message_templates(@waba_id)
+  rescue StandardError
+    raise ArgumentError,
+          'The token can access the number but cannot access message templates. Generate a token with whatsapp_business_management permission.'
+  end
+
+  def build_preview(phone_data)
+    phone_number = normalized_phone_number(phone_data['display_phone_number'])
+    verified_name = phone_data['verified_name'].presence
+
+    {
+      verified_name: verified_name,
+      display_phone_number: phone_number,
+      phone_number_id: phone_data['id'].to_s,
+      waba_id: @waba_id.to_s,
+      template_access: true,
+      suggested_inbox_name: "#{verified_name || phone_number} WhatsApp"
+    }
+  end
+
+  def normalized_phone_number(phone_number)
+    digits = phone_number.to_s.gsub(/[^\d]/, '')
+    "+#{digits}"
+  end
+end

app/services/whatsapp/manual_webhook_status_service.rb

@@ -0,0 +1,39 @@
+class Whatsapp::ManualWebhookStatusService
+  def initialize(channel)
+    @channel = channel
+    @api_client = Whatsapp::FacebookApiClient.new(channel.provider_config['api_key'])
+  end
+
+  def perform
+    callback_configured = callback_configured?
+
+    {
+      callback_verified: callback_configured,
+      callback_configured: callback_configured,
+      callback_url: callback_url,
+      subscription_verified: subscription_verified?
+    }
+  end
+
+  private
+
+  def callback_configured?
+    phone_number = @api_client.fetch_phone_number(
+      @channel.provider_config['phone_number_id'],
+      fields: 'webhook_configuration'
+    )
+    webhook_configuration = phone_number.fetch('webhook_configuration', {})
+
+    %w[override_callback_uri phone_number whatsapp_business_account application].any? do |key|
+      webhook_configuration[key] == callback_url
+    end
+  end
+
+  def subscription_verified?
+    @api_client.fetch_subscribed_apps(@channel.provider_config['business_account_id']).fetch('data', []).present?
+  end
+
+  def callback_url
+    "#{ENV.fetch('FRONTEND_URL', nil)}/webhooks/whatsapp/#{@channel.phone_number}"
+  end
+end

config/routes.rb

@@ -357,6 +357,10 @@ Rails.application.routes.draw do
 
           namespace :whatsapp do
             resource :authorization, only: [:create]
+            post 'manual/preview', to: 'manual_setup#preview'
+            post 'manual/connect', to: 'manual_setup#connect'
+            get 'manual/:inbox_id/webhook_status', to: 'manual_setup#webhook_status'
+            post 'manual/:inbox_id/setup_webhook', to: 'manual_setup#setup_webhook'
           end
 
           resources :webhooks, only: [:index, :create, :update, :destroy]