From ee7187d2ed8af51a0af9afcbb7ba45fc6fd45886 Mon Sep 17 00:00:00 2001
From: Tanmay Deep Sharma <32020192+tds-1@users.noreply.github.com>
Date: Wed, 14 Jan 2026 18:00:12 +0530
Subject: [PATCH 1/2] fix: prevent deserialization error on deletion (#13264)

---
 app/listeners/action_cable_listener.rb       |  7 +++++--
 app/models/contact.rb                        | 16 ++++++++++------
 spec/listeners/action_cable_listener_spec.rb |  5 +++--
 3 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/app/listeners/action_cable_listener.rb b/app/listeners/action_cable_listener.rb
index 48b7a3aa9..61aa4f535 100644
--- a/app/listeners/action_cable_listener.rb
+++ b/app/listeners/action_cable_listener.rb
@@ -159,8 +159,11 @@ class ActionCableListener < BaseListener
   end
 
   def contact_deleted(event)
-    contact, account = extract_contact_and_account(event)
-    broadcast(account, [account_token(account)], CONTACT_DELETED, contact.push_event_data)
+    contact_data = event.data[:contact_data]
+    account = Account.find_by(id: contact_data[:account_id])
+    return if account.blank?
+
+    broadcast(account, [account_token(account)], CONTACT_DELETED, contact_data)
   end
 
   def conversation_mentioned(event)
diff --git a/app/models/contact.rb b/app/models/contact.rb
index 0dc92b51e..3badf478d 100644
--- a/app/models/contact.rb
+++ b/app/models/contact.rb
@@ -179,11 +179,9 @@ class Contact < ApplicationRecord
   end
 
   def self.resolved_contacts(use_crm_v2: false)
-    if use_crm_v2
-      where(contact_type: 'lead')
-    else
-      where("contacts.email <> '' OR contacts.phone_number <> '' OR contacts.identifier <> ''")
-    end
+    return where(contact_type: 'lead') if use_crm_v2
+
+    where("contacts.email <> '' OR contacts.phone_number <> '' OR contacts.identifier <> ''")
   end
 
   def discard_invalid_attrs
@@ -243,7 +241,13 @@ class Contact < ApplicationRecord
   end
 
   def dispatch_destroy_event
-    Rails.configuration.dispatcher.dispatch(CONTACT_DELETED, Time.zone.now, contact: self)
+    # Pass serialized data instead of ActiveRecord object to avoid DeserializationError
+    # when the async EventDispatcherJob runs after the contact has been deleted
+    Rails.configuration.dispatcher.dispatch(
+      CONTACT_DELETED,
+      Time.zone.now,
+      contact_data: push_event_data.merge(account_id: account_id)
+    )
   end
 end
 Contact.include_mod_with('Concerns::Contact')
diff --git a/spec/listeners/action_cable_listener_spec.rb b/spec/listeners/action_cable_listener_spec.rb
index 61f818da1..1aecc3779 100644
--- a/spec/listeners/action_cable_listener_spec.rb
+++ b/spec/listeners/action_cable_listener_spec.rb
@@ -117,13 +117,14 @@ describe ActionCableListener do
   describe '#contact_deleted' do
     let(:event_name) { :'contact.deleted' }
     let!(:contact) { create(:contact, account: account) }
-    let!(:event) { Events::Base.new(event_name, Time.zone.now, contact: contact) }
+    let(:contact_data) { contact.push_event_data.merge(account_id: contact.account_id) }
+    let!(:event) { Events::Base.new(event_name, Time.zone.now, contact_data: contact_data) }
 
     it 'sends message to account admins, inbox agents' do
       expect(ActionCableBroadcastJob).to receive(:perform_later).with(
         ["account_#{account.id}"],
         'contact.deleted',
-        contact.push_event_data.merge(account_id: account.id)
+        contact_data
       )
       listener.contact_deleted(event)
     end

From 8eb0558b0a7c4a0a95100d7fc1adae27450aa44b Mon Sep 17 00:00:00 2001
From: Muhsin Keloth <muhsinkeramam@gmail.com>
Date: Wed, 14 Jan 2026 17:33:02 +0400
Subject: [PATCH 2/2] fix: Case-insensitive language matching for WhatsApp
 template messages (#13269)

Fixes https://github.com/chatwoot/chatwoot/issues/13257
When sending WhatsApp template messages via API with `processed_params`,
users receiving error `(#132000) Number of parameters does not match the
expected number of params` from WhatsApp. The find template method
performed case-sensitive string comparison on language codes. If a user
sent `language: "ES"` but the template was stored as `language: "es"`,
the template wouldn't be found, resulting in empty `components: []`
being sent to WhatsApp.
---
 app/services/whatsapp/template_processor_service.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/services/whatsapp/template_processor_service.rb b/app/services/whatsapp/template_processor_service.rb
index 4a89d684a..0aaca2fb1 100644
--- a/app/services/whatsapp/template_processor_service.rb
+++ b/app/services/whatsapp/template_processor_service.rb
@@ -20,7 +20,9 @@ class Whatsapp::TemplateProcessorService
 
   def find_template
     channel.message_templates.find do |t|
-      t['name'] == template_params['name'] && t['language'] == template_params['language'] && t['status']&.downcase == 'approved'
+      t['name'] == template_params['name'] &&
+        t['language']&.downcase == template_params['language']&.downcase &&
+        t['status']&.downcase == 'approved'
     end
   end