Account and sign-in
The app connection could not be completed
invalid_request
pastebin.ca could not process this authorization request from an app or AI client — most often because it expired or was already completed.
HTTP 400·Account and sign-in
What it means
What happened
pastebin.ca could not process this authorization request from an app or AI client — most often because it expired or was already completed.
Why
Why it might have happened
- The authorize or consent page was left open too long, so the request expired.
- The app or client restarted the sign-in, so this older request is no longer active.
- The app sent an incomplete request — a missing or unregistered client, redirect URL, or PKCE challenge.
Next steps
What you can try
- Return to the app or client and start the connection again — it will issue a fresh request.
- Approve or deny promptly on the new page so it does not expire.
- If it keeps failing, disconnect and reconnect pastebin.ca in the app, or contact the app developer with this error code.
Related
Related error help
Still stuck?
Get help
If the error keeps happening, send feedback or contact us and include invalid_request plus what you were trying to do.