Error codes - Workchats Developer Docs

See Errors for the envelope shape and how to handle unknown codes. This page is the lookup table, alphabetical by code.

Code	HTTP
`cannot_dm_user`	403
`client_error`	any 4xx
`conversation_archived`	409
`conversation_not_found`	404
`file_not_found`	404
`idempotency_key_reused`	422
`internal_error`	500
`invalid_auth`	401
`invalid_blocks`	400
`invalid_client`	401
`invalid_cursor`	400
`invalid_grant`	400
`invalid_request`	400
`message_not_found`	404
`missing_idempotency_key`	400
`missing_scope`	403
`not_acceptable`	406
`not_allowed_in_conversation`	403
`not_authed`	401
`not_found`	404
`not_in_conversation`	403
`payload_too_large`	413
`rate_limited`	429
`server_error`	any 5xx
`token_in_query`	400
`token_revoked`	401
`unsupported_grant_type`	400
`unsupported_media_type`	415
`user_deactivated`	409
`user_not_found`	404

token_expired is reserved for a future refresh-token grant and isn’t returned today.