Can’t send a normal message in an existing conversation
Messenger follows the same 24-hour reply window as WhatsApp, reset every time the contact messages you.- Check the countdown in the chat header — something like “18 hours to reply.”
- If the window has closed, free-form messaging is blocked. Unlike WhatsApp, Heyy does not currently support an approved-template send on Messenger to force it back open — you’re waiting on the contact to message again.
- Once they do, the window reopens and normal messaging resumes.
Message shows as failed
- Confirm the conversation window hasn’t closed — this is the most common cause.
- Confirm the connection itself is healthy — see Common issues.
- Check delivery status on the message itself — see Message actions.