The fax server was deleted.

• Invalid Data Invalid Fax Server ID, Unable to Delete Fax Server!: serverId is not a UUID.
• Bad Request Unable to Fetch Fax Server Data to Delete!: it could not be read; nothing changed.
• Bad Request, with a message saying which step failed, such as Unable to Delete Fax Server Users!, Unable to Delete Fax Server Email to Fax Whitelist!, Unable to Reset Fax Server Destination! or Unable to Delete Fax Server!.
• Incorrect Format Invalid Phone Number!: the fax server was deleted, but its number isn't a valid phone number, so its inbound routing was not reset and the later clean-up was not scheduled.

No usable API key: none sent, a key that doesn't exist or was revoked (a revoked key stops working within a minute), or two kinds of credentials at once.

Unauthorized Access Unable to Delete Fax Server!: the key is Scoped.

Not Found Fax Server not found!

referenced_by_call_flow: a call flow sends calls to this fax server. flows names them.

Upstream Error Unable to verify call-flow references for this object — try again, code managed_lookup_failed: nothing was deleted.

Your key could not be checked just now; the key may be fine. Wait Retry-After seconds and retry.