190 is Meta saying the credential is no longer accepted. The token expired, was revoked, had a permission
removed, or belongs to an app that changed. It is not about a message or a template: once it happens, nothing on
that number works.
What Lynomia Chat does with it
Two authorization refusals in a row and the inbox is marked as needing reauthorization. That threshold exists so one bad moment does not raise an alarm, and two does.
When it trips:
- a banner appears at the top of the dashboard saying you will not receive new messages until the connection is restored,
- the account's administrators are emailed,
- incoming messages are still accepted and stored. A broken outbound credential does not make Lynomia Chat throw away what customers send you — that was deliberate, and it is why you have the conversations to answer once you reconnect.
What to do
Open Settings → Inboxes → the inbox.
| How the number was connected | Where to fix it |
|---|---|
| Through the guided WhatsApp sign-up | the inbox's Configuration tab — reconnect and approve the permissions again |
| With a token you pasted in yourself | Configuration — replace the token with a fresh one from your Meta app |
Then open Account Health and confirm the number reports normally. See reconnect a WhatsApp number for the whole sequence, including what to check if reconnecting is refused.
A worked example
An administrator removes a colleague from the Meta business portfolio on a Thursday. The token that colleague had authorised stops working, and after the second refused send the dashboard banner appears and the administrators are emailed. They reconnect the inbox from Configuration, approve the permissions, and the queue of conversations that arrived during the outage is waiting in the inbox.
Who can do this
Administrators only. Agents see the banner and can keep reading, but Configuration and Account Health are not open to them — see roles and permissions.
Limits
- Nothing re-sends the messages that failed while the token was invalid. Retry each one, or send again.
- Lynomia Chat cannot tell you which permission was lost. Meta reports a refusal, not a diff.
- Deleting and recreating the inbox is not the fix and can release the number from your Meta app. Reconnect first.
- A token you generated by hand will expire again. The guided sign-up is what avoids repeating this.