What it means
A watch, board, delivery or change with that id does not exist for your account.
What to do
Check the id and that it belongs to your key’s account.
List the resource first to get valid ids.
Example response
The detail text is illustrative and can differ by endpoint.
retryAfterSeconds appears only on a 429 or 503 that carries a Retry-After header.
In the SDKs
The Python SDK raises NotFoundError and the TypeScript SDK raises NotFoundError.
Both expose code, retryable, the request id and the retry hint.
See Error codes for the full table and attribute names. Last modified on October 29, 2026