54150: List not found

This error appears when Twilio cannot find the Sync List you requested in the specified Sync Service. You can address a Sync List by its sid or unique_name, and a List can stop existing if it was deleted or expired because of TTL.

• The sid or unique_name in your request does not match an existing Sync List.
• The ServiceSid in your request points to a different Sync Service than the one that owns the List. Fetch, update, and delete operations all scope the List under a specific ServiceSid.
• The Sync List was deleted. Deleting a List permanently removes it and all of its items.
• The Sync List expired because you set ttl or collectionTtl on the List. Expired Sync objects disappear from the SDKs and the REST API.

• Verify the identifier you send for the List. Use the exact sid or unique_name assigned to that List.
• Verify the ServiceSid in the request. Use the same Sync Service that contains the List you want to fetch, update, or delete.
• Read the Lists in the target Sync Service before retrying so you can confirm that the List still exists and copy the correct identifier.
• If you use TTL, review the List's ttl or collectionTtl value. Increase it, remove it, or create the List again if it has already expired or was deleted.

• List Resource
• Sync Objects Time-To-Live (TTL)
• Sync overview