Troubleshooting

Check the connection's Delivery log first. The app records a short explanation and, when Google responded, the HTTP status. Never paste a complete incoming webhook URL into a support ticket.

What you seeLikely causeWhat to do
“Paste the complete incoming webhook URL from Google Chat.”The value is empty or is not a URL.In the Chat space, create or copy an incoming webhook URL and paste the complete value.
“Use a Google Chat incoming webhook URL with a space, key, and token.”The URL host, path, or required query parameters do not match a Google Chat webhook.Create a new incoming webhook in the target space and replace the saved destination.
HTTP 400Google Chat rejected the request, the webhook is not current, or the message format was rejected.Create a fresh webhook and use the app's Test action. If it persists, contact support with the time and HTTP status, never the URL.
HTTP 403Workspace policy or permissions block incoming webhooks.Ask a Workspace administrator to allow incoming webhooks for the applicable user or organizational unit. Then test again.
HTTP 404The webhook or space no longer exists, or the webhook was revoked.Create a new webhook in the intended space and update the connection.
HTTP 429Google Chat is rate limiting traffic to the space.The app retries automatically. Reduce other webhook traffic and allow the queue to drain.
HTTP 5xxGoogle Chat is temporarily unavailable.The app retries automatically. Check the delivery log later and retry any queued items still eligible.
Network or timeout errorThe app could not reach the destination or the request timed out.Check Atlassian Forge and Workspace status, verify the webhook is current, and retry.
No message and no delivery entryThe issue may not match the rule, may have a security level, the connection may be paused, or the event may not have reached the app.Preview the rule, check the project/JQL and event types, confirm the issue is not restricted, and inspect the connection state.
“Connection paused”An administrator paused the connection or the app paused it after repeated failures.Correct the underlying destination or policy, then resume and retry queued events.

The exact wording can vary by app version. The HTTP mappings above reflect the current app's friendly-error mapping. See also Google's incoming webhook guide.