diff --git a/app/services/conversations/can_reply_service.rb b/app/services/conversations/can_reply_service.rb
index c56740e4e..7f94f890a 100644
--- a/app/services/conversations/can_reply_service.rb
+++ b/app/services/conversations/can_reply_service.rb
@@ -1,66 +1,55 @@
 class Conversations::CanReplyService
-  DEFAULT_MESSAGING_WINDOW = 24
-  EXTENDED_MESSAGING_WINDOW = 7.days
-  INSTAGRAM_MESSENGER_TYPE = 'instagram_direct_message'
-
   def initialize(conversation)
     @conversation = conversation
   end
 
   def can_reply?
-    return false if last_incoming_message.nil?
-
     channel = @conversation.inbox&.channel
+
+    return can_reply_on_instagram_via_messenger? if instagram_via_messenger?
+    return can_reply_on_instagram? if @conversation.inbox.instagram_direct?
     return true unless channel&.messaging_window_enabled?
 
-    case channel_type
-    when :instagram_messenger
-      can_reply_on_instagram_via_messenger?
-    when :instagram_direct
-      can_reply_on_instagram?
-    else
-      last_message_in_messaging_window?(messaging_window)
-    end
+    last_message_in_messaging_window?(messaging_window)
   end
 
   private
 
-  def channel_type
-    return :instagram_messenger if instagram_via_messenger?
-    return :instagram_direct if @conversation.inbox.instagram_direct?
-    :other
-  end
-
   def messaging_window
-    return DEFAULT_MESSAGING_WINDOW unless @conversation.inbox.api?
-
-    window = @conversation.inbox.channel.additional_attributes['agent_reply_time_window'].to_i
-    window.positive? ? window : DEFAULT_MESSAGING_WINDOW
+    @conversation.inbox.api? ? @conversation.inbox.channel.additional_attributes['agent_reply_time_window'].to_i : 24
   end
 
   def last_message_in_messaging_window?(time)
+    return false if last_incoming_message.nil?
+
     Time.current < last_incoming_message.created_at + time.hours
   end
 
   def instagram_via_messenger?
-    @conversation.additional_attributes['type'] == INSTAGRAM_MESSENGER_TYPE
+    @conversation.additional_attributes['type'] == 'instagram_direct_message'
   end
 
   def can_reply_on_instagram_via_messenger?
     global_config = GlobalConfig.get('ENABLE_MESSENGER_CHANNEL_HUMAN_AGENT')
-    extended_window_enabled?(global_config['ENABLE_MESSENGER_CHANNEL_HUMAN_AGENT'])
+
+    return false if last_incoming_message.nil?
+
+    if global_config['ENABLE_MESSENGER_CHANNEL_HUMAN_AGENT']
+      Time.current < last_incoming_message.created_at + 7.days
+    else
+      last_message_in_messaging_window?(24)
+    end
   end
 
   def can_reply_on_instagram?
     global_config = GlobalConfig.get('ENABLE_INSTAGRAM_CHANNEL_HUMAN_AGENT')
-    extended_window_enabled?(global_config['ENABLE_INSTAGRAM_CHANNEL_HUMAN_AGENT'])
-  end
 
-  def extended_window_enabled?(enabled)
-    if enabled
-      Time.current < last_incoming_message.created_at + EXTENDED_MESSAGING_WINDOW
+    return false if last_incoming_message.nil?
+
+    if global_config['ENABLE_INSTAGRAM_CHANNEL_HUMAN_AGENT']
+      Time.current < last_incoming_message.created_at + 7.days
     else
-      last_message_in_messaging_window?(DEFAULT_MESSAGING_WINDOW)
+      last_message_in_messaging_window?(24)
     end
   end