Template Not Found – SignatureAPI Docs

What Happened

The envelope template referenced in the request does not exist. The template ID provided could not be matched to any template in your account.

The response includes a detail property with more information about this error.

Verify the template ID is correct and does not contain any typos.
Check that the template exists in your account by listing your envelope templates.
Ensure you are using the correct API mode (test or live), as templates are specific to each mode.