Crisp plugin

WhatsApp Auto Re-engage

WhatsApp only lets a business send free-form messages within 24 hours of the customer's last message. Reply later and Meta silently rejects it. This plugin notices the rejection and re-sends your approved template so the conversation re-opens, without anyone having to remember.

Install the plugin

Add WhatsApp Auto Re-engage to your Crisp workspace from the Marketplace, then open its settings.

Paste your WhatsApp API token

Generate a token in Crisp > Plugins > WhatsApp > API Settings and paste it into the plugin settings. Set the callback URL shown there.

Pick a template

Choose the Meta-approved template that should re-open the conversation and map its {{1}} placeholders (first name, phone, static text).

Enable auto-send

From then on, any operator or bot reply rejected because the 24h window closed triggers the template automatically, once per conversation per cooldown.

How it decides to send

Only WhatsApp messages rejected by Crisp (the message:acknowledge:ignored event).
Only outbound operator or bot messages, never a visitor's.
Only when the visitor's last message is older than the window (24h by default).
Never twice on the same conversation inside the cooldown, even if several replies failed at once.
Optionally, only when the visitor has written at least once (so unknown numbers are not messaged).