# Functions
Used when the user attempts to perform an action that is not permitted as part of the flow.
An error that occurs when an incoming request comes without a JWT token in the Authorization header.
An error that occurs when a database operation (e.g.
Represents errors in the system, including failures in inter-service API calls.
An error for when struct validation fails, or there are other issues with the payload to an endpoint.
Represents errors in the system whose cause is unidentified.