generated: '2026-07-21'
method: searched
source: https://github.com/voiapp/partner-api-docs/blob/gh-pages/maas-pro.md
format: provider-error-codes
envelope: Partner API errors are returned with an HTTP status code plus a machine-readable
  ErrorCode string and a human-readable detail. MaaS Light (service areas) responses carry an
  errors[] array of {code, detail} objects alongside data.
error_codes:
- domain: user
  errors:
  - {status: StatusBadRequest, detail: Invalid input, code: InvalidInput}
  - {status: StatusBadRequest, detail: This external user id already exists, code: ExternalUserIDAlreadyExists}
  - {status: StatusBadRequest, detail: Empty user email id, code: EmptyUserEmailID}
  - {status: StatusInternalServerError, detail: Unable to register user, code: UserRegistrationFailed}
  - {status: StatusInternalServerError, detail: Failed to get user, code: ErrFailedToGetUser}
  - {status: StatusInternalServerError, detail: Failed to register user payment method, code: ErrFailedPaymentRegistration}
- domain: rental
  errors:
  - {status: StatusBadRequest, detail: Invalid input, code: InvalidInput}
  - {status: StatusBadRequest, detail: Invalid user id, code: InvalidUserId}
  - {status: StatusBadRequest, detail: Invalid vehicle id, code: InvalidVehicleId}
  - {status: StatusBadRequest, detail: Invalid rental id, code: InvalidRentalID}
  - {status: StatusBadRequest, detail: User does not exist, code: UserNotFound}
  - {status: StatusBadRequest, detail: This user already has a rental, code: RentalAlreadyExists}
  - {status: StatusNotFound, detail: Rental ID does not exist, code: RentalIDDoesNotExist}
  - {status: StatusBadRequest, detail: Rental is already ended for this rental id, code: RentalAlreadyEnded}
  - {status: StatusInternalServerError, detail: Unable to start rental, code: FailedToStartRental}
  - {status: StatusInternalServerError, detail: Unable to end rental, code: FailedToEndRental}
  - {status: StatusBadRequest, detail: Vehicle not found, code: VehicleNotFound}
  - {status: StatusInternalServerError, detail: Failed to fetch vehicle, code: FailedToFetchVehicle}
  - {status: StatusInternalServerError, detail: Failed to update vehicle, code: FailedToUpdateVehicle}
  - {status: StatusInternalServerError, detail: Unable to lock vehicle, code: FailedToLockVehicle}
  - {status: StatusInternalServerError, detail: Unable to unlock vehicle, code: FailedToUnlockVehicle}
  - {status: StatusInternalServerError, detail: Unable to calculate end rental price, code: FailedToCalculatePrice}
  - {status: StatusInternalServerError, detail: Unable to validate parking area, code: FailedToValidateParking}
  - {status: StatusInternalServerError, detail: This is no parking area - cannot end rental, code: FailedToEndRentalNoParking}
  - {status: StatusInternalServerError, detail: Unable to validate short rental, code: FailedToValidateShortRental}
  - {status: StatusNotFound, detail: Unable to find active rental, code: ActiveRentalNotFound}
- domain: pricing
  errors:
  - {status: StatusBadRequest, detail: Invalid vehicle id, code: InvalidVehicleId}
- domain: vehicle
  errors:
  - {status: StatusBadRequest, detail: Vehicle code was empty, code: EmptyVehicleCode}
  - {status: StatusBadRequest, detail: Vehicle id was empty, code: EmptyVehicleID}
- domain: zone
  errors:
  - {status: StatusBadRequest, detail: Zone id was empty, code: EmptyZoneID}
notes:
- Error detail strings in the source docs are concatenated without spaces (e.g.
  "Thisuseralreadyhasarental"); spacing has been restored here for readability without
  changing the codes.
- The API does not use RFC 9457 application/problem+json.