Error codes returned by the Backend Services RESTful API:
| Error Code | HTTP Status Code | Error Message | Description | Returned By |
|---|---|---|---|---|
| 1 | 500 | Unexpected error. | All | Represents an error that doesn't fall into any other category. |
| 107 | General database error. | All | A problem occurred while working with the database. The error message will contain more information about the error. | |
| 107 | 400 | The operation results in a duplicate key for a unique index. | Create | You are trying to create an item with a field that requires a unique value (for example: "Id"). The error shows that an item with such value already exists. |
| 107 | 400 | Duplicate values already exist for field Number of content type "New". | Update field | You are trying to enforce a uniqueness constraint on the values of a field but the field already contains non-unique values. |
| 201 | 409 | A user with the same username already exists. | Register user, Update user | The name of the user account you are creating or updating already exists. |
| 202 | 400 | No password was specified. | Register user | You are trying to register a user without specifying a password. |
| 203 | 400 | No username was specified. | Register user | You are trying to register a user without specifying a username. |
| 204 | 400 | The password you specified is not a valid password literal. | Register user, Change password | The specified password is not in the correct format. The password must be a non-empty string. |
| 205 | 401 | Invalid username or password.("unauthenticated") | Login | A user with the specified username and password combination does not exist in the system. |
| 206 | 400 | The specified user was not found. | Change password, Set password, Reset password | The specified user was not found. |
| 207 | 400 | The specified user data is invalid. | Register user, Update user | Some of the data you specified when creating or updating a user is invalid. The error message will contain specific information about the invalid data. |
| 208 | 403 | The specified reset code is invalid. | Set password | The reset code that you passed is incorrect or has expired. |
| 209 | 400 | The specified verification code is invalid. | Verify user | The verification code that you passed is incorrect or has expired. |
| 210 | 403 | The specified user is already verified. | Verify user | You are attempting to verify a user account that has already been verified. |
| 211 | 409 | A user with the specified email already exists. | Register user, Link user | You are attempting to use an email address that already exist in the system. |
| 213 | 400 | The specified user has no email | ||
| address defined. | Change password, Set password, Reset password, Register user, Resend verification | The requested operation requires an email address to be set for the user. | ||
| 214 | 400 | The specified identity provider is not supported. | Register user, Link user, AD FS metadata | You have specified an identity provider value that is not recognized by the system. |
| 215 | 400 | No token was specified. | Register user, Link user | The provider-generated user access token is not present in the request. |
| 216 | 400 | No identity provider was specified. | Register user, Link user | You have not specified an identity provider. |
| 217 | 400 | Cannot retrieve a user for the specified token. | Register user, Link user | The system is unable to match the token you specified with a valid user for the identity provider you are using. |
| 218 | 400 | The user is already linked with the specified provider. | Link user | The user has already been linked to the specified authentication provider. |
| 219 | 400 | The user cannot be unlinked because she is not linked with the specified provider. | Unlink user | You are attempting to remove an authentication provider link that does not exist. |
| 220 | 400 | The user cannot be unlinked. | Unlink user | The user cannot be unlinked because it has a single identity provider. |
| 221 | 400 | The operation is not supported for the given user. | Reset password, Resend verification email | Reset password and resend verification email are not available for users coming from external identity providers. |
| 222 | 403 | The account quota is limited for this operation. | All | Your subscription plan does not allow you to run the operation. The message will vary based on the operation you are trying to perform. |
| 223 | 403 | The account is disabled. | All | The account that hosts the application has been disabled. |
| 224 | 403 | The feature is not enabled for this account. | All | The experimental feature you are trying to use is not enabled for your account. |
| 301 | 403 | Invalid access token. | All | The provided access token is not valid. |
| 302 | 403 | Your access token has expired. | All | The validity of the provided access token has expired. |
| 600 | 404 | Not found. | All | The requested resource was not found. |
| 601 | 400 | Invalid request. | All | The request is invalid. Consult the accompanying error message to find out what went wrong. |
| 602 | 405 | Method not supported. | N/A | You cannot use this HTTP method with this resource. |
| 603 | 403 | Access denied. | All | You are not allowed to perform the operation. |
| 604 | 401 | Unauthorized. | All | You did not provide authorization which is required for this operation. |
| 605 | 400 | Missing or invalid API version. | N/A | The API version is missing from the request URL. |
| 606 | 400 | Missing App ID. | N/A | The App ID is missing from the request URL. |
| 607 | Invalid App ID. | N/A | The specified App ID is invalid. Make sure you are using the correct App ID. | |
| 608 | 400 | Invalid filter expression. | Read, Delete, Update | The filter expression you specified is invalid. Make sure the filter expression is a valid JSON object and it is in the required format. |
| 609 | 400 | Invalid sort expression. | Read | The sort expression you specified is invalid. Make sure the sort expression is a valid JSON object |
| and it is in the required format. | ||||
| 610 | Missing or invalid content type. Please specify a valid Content-Type header. | All | The Content-Type header is required for this operation, but is either missing or invalid. | |
| 611 | The specified content type was not found. | All data operations*, Metadata operations† for content types | You specified an unexisting content type. | |
| 612 | 400 | Invalid power fields definition. | Read | The Power Fields definition you specified is invalid. Make sure the Power Fields definition is a valid JSON object and it is in the required format. |
| 613 | Unsupported Content-Type. | Set cloud code | The specified content type is not supported by this request. | |
| 614 | 400 | Invalid custom parameter expression. | All data operations* | The custom parameters expression you specified is invalid. Make sure it is a valid JSON object. |
| 615 | 400 | Invalid request body. | All | The body of the HTTP request is invalid. Make sure its format is consistent with the Content-Type header you specified. |
| 616 | 400 | Invalid fields expression. | Read | The fields expression you specified is invalid. Make sure the fields expression is a valid JSON and it is in the required format. |
| 617 | Loop detected. | All data operations* | An infinite loop was detected. This usually happens when your cloud code makes a call that results in the execution of the same code. | |
| 618 | 400 | Invalid expand expression. | Read operations | The expand expression you specified is invalid. Make sure the expand expression is in the required |
| format. | ||||
| 619 | 400 | Invalid single field expression. | Read operations | The single field expression you specified is invalid. Make sure the single field expression is a non-empty string. |
| 630 | 400 | Invalid metadata definition specified. | Metadata operations† | The metadata request contains or results in an invalid metadata definition. Refer to the accompanying error message to find out what went wrong. |
| 640 | 406 | The specified response content type is not supported. | All | The response content type you specified in the request is not supported. |
| 650 | 408 | The request timed out. | All | The request timed out. A request times out if it does not complete within 60 seconds. |
| 660 | 400 | Data Link Server Error | All | The Data Link Server returned an error. Refer to the accompanying error message to find out what went wrong. |
| 670 | 503 | Application is down for maintenance | All | The application is down for maintenance. You are advised to stop all requests to it and resume them at a later time. |
| 701 | 400 | ContentType not specified. | Upload file (base64) | The required ContentType parameter is not specified. |
| 702 | 400 | Missing or invalid file content. | Upload file, Update file content, Set cloud code | You have not specified file content or the specified file content is invalid. |
| 801 | 404 | Item not found. | Read by ID, Delete by ID, Update by ID | The specified item was not found. |
| 901 | 500 | An error occurred during execution of custom server code. | All data operations*, Execute cloud function | There was an error while executing your cloud code. Review your cloud code logic. |
| 902 | 500 | The execution of the custom server code timed out. | All data operations*, Execute cloud function | The execution of your custom code took too long. Make sure you properly call the "done" callback in all cases. |
| 910 | 500 | The request was canceled by custom server code. | All data operations* | Your custom cloud code canceled the operation. |
| 951 | 500 | The custom code definition failed to compile. | All data operations* | The cloud code for the operation failed to compile. Check your cloud code for typos and syntax errors. |
| 955 | 500 | Custom cloud code is disabled for this type. | All data operations* | The cloud code for this content type have been disabled due to too many timeouts. Contact Support for more information. |
| 960 | 400 | The request was processed but an error was generated by custom code. | All data operations* | If you don't include your own error code when you are setting an error in your cloud code, then this default code is automatically added. |
| 1000 | 400 | Error processing email template. | Send email | There was an error processing the email template. The message may contain more information about the error. |