b686d14044
When businesses use WhatsApp Business App (co-existence mode) or Instagram App or TikTok alongside Chatwoot, messages sent from the native apps were not synced properly back to Chatwoot. This left agents with an incomplete conversation history and no visibility into responses sent outside the dashboard. Additionally, if these echo messages did arrive, they appeared as "Sent by: Bot" in the UI since they had no sender, making it confusing for agents. This PR subscribes to WhatsApp `smb_message_echoes` webhook events and routes them through the existing service with an `outgoing_echo` flag, mirroring how Instagram already handles echoes. On the Instagram side, echo messages now also carry the `external_echo` content attribute and `delivered` status. On the frontend, messages with `externalEcho` are distinguished from bot messages showing a "Native app" avatar and an advisory note encouraging agents to reply from Chatwoot to maintain the service window. <img width="1518" height="524" alt="CleanShot 2026-01-29 at 13 37 57@2x" src="https://github.com/user-attachments/assets/5aa0b552-6382-441f-96aa-9a62ca716e4a" /> Fixes https://linear.app/chatwoot/issue/CW-4204/display-messages-not-sent-from-chatwoot-in-case-of-outgoing-echo Fixes https://linear.app/chatwoot/issue/PLA-33/incoming-from-me-messages-from-whatsapp-business-app-are-not-falling