API Reference/Endpoints
Delete a message
DELETE/api/linkedin/gateway/messages/{message_id}
Unsends a message you've already sent — a "delete for everyone", not just removing it from your own view.
On LinkedIn this only works within roughly 60 minutes of the original send; after that the provider rejects the deletion. WhatsApp doesn't carry the same documented cutoff.
Authentication
Send your personal API key as a bearer token. A missing, malformed or revoked key returns 401.
Path parameters
Query parameters
Errors
·401 Unauthorized. The key is missing, malformed or has been rotated.·403 Forbidden. account_id doesn't belong to this key.·404 Not Found. No message exists with that id on that account.