Updated on 2026-05-27 GMT+08:00

Error Codes

The table below shows the error codes you might see when calling a MaaS API.

Table 1 Error codes

HTTP Status Code

Error Code

Error Message

Description

Handling

400

ModelArts.0104

CreateCustomEndpointReq.endpoint_name is a required field

The custom endpoint name is mandatory.

Check whether the custom endpoint name is specified.

400

ModelArts.6271

Custom endpoint name has already been used (including deleted access points). To ensure billing uniqueness, please use a different name.

The custom endpoint name has been used (including deleted endpoints). To ensure the uniqueness of the bill, use a different name.

Check whether the endpoint name has been used. If yes, use a different one.

400

ModelArts.6274

Custom endpoint name is invalid. Enter 1 to 64 characters, staring with a letter. Only letters, digits, point(.), underscores (_), and hyphens (-) are allowed

The name of the custom endpoint is invalid. Enter 1 to 64 characters. Only letters, digits, underscores (_), hyphens (-), and periods (.) are allowed.

Check the format of the custom endpoint name.

400

ModelArts.6291

CustomEndpointNotFound

The custom endpoint does not exist.

Check whether the custom endpoint has been created.

400

ModelArts.6297

Custom endpoint number exceed quota

The number of custom endpoints exceeds the quota.

Delete unnecessary custom endpoints and try again.

400

ModelArts.6299

Custom endpoint id is required

The custom endpoint ID is missing.

Check whether the custom endpoint ID is correct.

400

ModelArts.6613

Operation failed. The online service status needs to have the 'Mount to MAAS Gateway' switch turned on or the authentication method set to 'No Authentication' in order to create a custom custom endpoint.

Operation failed. You can create a custom endpoint only when MaaS gateway mounting is enabled or the authentication type is no authentication.

  • In Service Call Settings, set Authentication Mode to None.
  • In Network Settings, enable Public Network Access and Private Network Connection Approval.

401

ModelArts.8503

No permission to create modelarts custom endpoints

You do not have the permission to create a custom endpoint for ModelArts real-time services.

Check whether the account permission meets the requirements.

400

ModelArts.2115

Invalid JSON request body

Invalid JSON request body.

The invalid request body has been modified based on the error message.

400

ModelArts.6298

Parameter (%s) security check failed, please check for special characters.

Security check for parameter (%s) failed. Check for special characters.

Check whether your parameters contain insecure characters.