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Management API (Beta)

Management API Error Responses

Last updated: 2026/06/08

This document summarizes the errors that occur when making requests to the Management API, categorized by type.

Caution

The information provided below does not guarantee coverage of all status codes during errors. Unexpected issues or omissions may lead to other errors occurring. Please be aware of this in advance.

Response Body on Error

The error response from the Management API may include a message in the response body as follows:

{
    message: "some message"
}

Caution

Error messages may change without notice. Please be careful not to handle based on the error messages.

List of Error Responses

Common Error Responses

Status Code	Error Message	Cause and Solution
400 Bad Request	`IP address rejected.`	The request is coming from an unauthorized IP address. Please check the API IP restriction settings and make the request from an allowed IP address.
403 Forbidden	`Forbidden`	Operations via the Management API are not permitted. Please check if the API key is correctly set and if permissions are granted in the API key settings.
404 Not Found	`Not Found`	The requested URL is incorrect. Please check for any typos in the URL.
429 Too Many Requests	`Too Many Requests`	You have exceeded the API call limit.
500 Internal Server Error	`Internal Server Error`	An unexpected error has occurred on the server side.

Error Responses for Content Operations

GET Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`Limit: must be no less than 0.`	The limit parameter has a value less than 0. Please specify a number between 0 and 100.
400 Bad Request	`limit must be less than or equal to 100`	The limit parameter has a value greater than 100. Please specify a number between 0 and 100.
400 Bad Request	`Invalid integer in query (limit=xxx)`	The limit parameter has an invalid value. Please specify a number between 0 and 100.
400 Bad Request	`Offset: must be no less than 0`	The offset parameter has a value less than 0. Please specify a non-negative number.
400 Bad Request	`Invalid integer in query (offset=xxx)`	The offset parameter has an invalid value. Please specify a non-negative number.
404 Not Found	`Content not found`	The requested content does not exist. Please check if the specified content ID is correct.

PUT Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`invalid request body`	An invalid value is specified in the body. Please check the content of the body.
400 Bad Request	`Past dates and times cannot be set as the reserved open date and time`	A past date and time has been specified for the scheduled publication. Please specify a future value relative to the current time.
400 Bad Request	`Past date and time cannot be set as the date and time to stop publishing reservations`	A past date and time has been specified for the scheduled end of publication. Please specify a future value relative to the current time.
400 Bad Request	`Cannot set publish or close schedule while under review`	You are trying to set a reservation for content that is under review. Please complete or withdraw the review before setting the reservation.
400 Bad Request	`Cannot be reserved for the public because it has already been published`	You are specifying a reservation to start publication for content that is already published. Please set a reservation to end publication first, or remove the reservation to start publication from the body.
400 Bad Request	`Reservations to start publishing must be set after reservations to stop publishing if the content is being published`	If the content is currently published, the reservation to start publication must be set after the reservation to stop publication. Please specify the end reservation first and the start reservation later.
400 Bad Request	`Cannot be reserved to stop publication while drafting`	You are specifying only a reservation to end publication for draft content. Please also set a reservation to start publication, or remove the reservation to end publication from the body.
400 Bad Request	`Reservations to stop publishing must be set after reservations to start publishing if content is in draft`	The reservation to end publication for draft content must be set after the reservation to start publication. Please specify the start reservation first and the end reservation later.
400 Bad Request	`Cannot be reserved to stop publication if the content is closed to the public`	You are specifying only a reservation to end publication for content that is closed to the public. Please also set a reservation to start publication, or remove the reservation to end publication from the body.
400 Bad Request	`Reservations to stop publishing must be set after reservations to start publishing if the content is closed to the public`	The order of the start/end reservations specified for closed content is incorrect. Please set the start reservation first and the end reservation later.

PATCH Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`Status: (0: must be a valid value.).`	An invalid value is specified in the body. Please check the content of the body.
400 Bad Request	`Status: the length must be exactly 1.`	An invalid value is specified in the body. Please check the content of the body.
400 Bad Request	`invalid user id`	An invalid user ID is specified in the body. Please specify an existing user ID.
400 Bad Request	`Request body is not JSON object.`	The JSON format specified in the body is incorrect. Please check the content of the body.
405 Method Not Allowed	`Method Not Allowed`	This is a request with a method that is not allowed. Please check if the URL is correct.

Media Operation Error Response

GET Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`Limit: must be no less than 0.`	The limit parameter has a value less than 0. Please specify a number between 0 and 100.
400 Bad Request	`limit must be less than or equal to 100`	The limit parameter has a value greater than 100. Please specify a number between 0 and 100.
400 Bad Request	`Invalid integer in query (limit=xxx)`	The limit parameter has an invalid value. Please specify a number between 0 and 100.
400 Bad Request	`Invalid boolean in query (imageOnly=xxx)`	The imageOnly parameter has an invalid value. Please specify true or false.
400 Bad Request	`Offset: must be no less than 0`	The offset parameter has an invalid value. Please specify a number greater than or equal to 0.
400 Bad Request	`Invalid integer in query (offset=xxx)`	The offset parameter has an invalid value. Please specify a number greater than or equal to 0.
400 Bad Request	`BadRequest`	The value of the token parameter is invalid or the token is expired.
404 Not Found	`Content not found`	No media exists with the file name specified in the fileName parameter.

POST Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`invalid request`	The format of the request is invalid. Please check the contents of the request body.
400 Bad Request	`request body too large`	The file size of the media being uploaded exceeds 5MB. Please reduce the size or upload it from the Administration console.
405 Method Not Allowed	`Method Not Allowed`	This is a request with an unsupported method. Please check if the URL is correct.

DELETE Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`invalid url`	The specified URL is invalid. Please check if the URL is correct.
400 Bad Request	`this medium is referenced by another content`	It cannot be deleted because it is referenced by another content. Please remove the reference to the media from the source content.
404 Not Found	`medium not found`	The media to be deleted does not exist. Please check if the correct media URL is specified.
405 Method Not Allowed	`Method Not Allowed`	This is a request with an unsupported method. Please check if the URL is correct.

Member Operation Error Response

GET Method

Status Code	Error Message	Cause and Solution
404 Not Found	`Member not found`	The member you are trying to retrieve does not exist or is still pending invitation. Please specify a member who has already joined the service.

Management API Error Responses

Last updated: 2026/06/08

This document summarizes the errors that occur when making requests to the Management API, categorized by type.

Caution

The information provided below does not guarantee coverage of all status codes during errors. Unexpected issues or omissions may lead to other errors occurring. Please be aware of this in advance.

Response Body on Error

The error response from the Management API may include a message in the response body as follows:

{
    message: "some message"
}

Caution

Error messages may change without notice. Please be careful not to handle based on the error messages.

List of Error Responses

Common Error Responses

Status Code	Error Message	Cause and Solution
400 Bad Request	`IP address rejected.`	The request is coming from an unauthorized IP address. Please check the API IP restriction settings and make the request from an allowed IP address.
403 Forbidden	`Forbidden`	Operations via the Management API are not permitted. Please check if the API key is correctly set and if permissions are granted in the API key settings.
404 Not Found	`Not Found`	The requested URL is incorrect. Please check for any typos in the URL.
429 Too Many Requests	`Too Many Requests`	You have exceeded the API call limit.
500 Internal Server Error	`Internal Server Error`	An unexpected error has occurred on the server side.

Error Responses for Content Operations

GET Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`Limit: must be no less than 0.`	The limit parameter has a value less than 0. Please specify a number between 0 and 100.
400 Bad Request	`limit must be less than or equal to 100`	The limit parameter has a value greater than 100. Please specify a number between 0 and 100.
400 Bad Request	`Invalid integer in query (limit=xxx)`	The limit parameter has an invalid value. Please specify a number between 0 and 100.
400 Bad Request	`Offset: must be no less than 0`	The offset parameter has a value less than 0. Please specify a non-negative number.
400 Bad Request	`Invalid integer in query (offset=xxx)`	The offset parameter has an invalid value. Please specify a non-negative number.
404 Not Found	`Content not found`	The requested content does not exist. Please check if the specified content ID is correct.

PUT Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`invalid request body`	An invalid value is specified in the body. Please check the content of the body.
400 Bad Request	`Past dates and times cannot be set as the reserved open date and time`	A past date and time has been specified for the scheduled publication. Please specify a future value relative to the current time.
400 Bad Request	`Past date and time cannot be set as the date and time to stop publishing reservations`	A past date and time has been specified for the scheduled end of publication. Please specify a future value relative to the current time.
400 Bad Request	`Cannot set publish or close schedule while under review`	You are trying to set a reservation for content that is under review. Please complete or withdraw the review before setting the reservation.
400 Bad Request	`Cannot be reserved for the public because it has already been published`	You are specifying a reservation to start publication for content that is already published. Please set a reservation to end publication first, or remove the reservation to start publication from the body.
400 Bad Request	`Reservations to start publishing must be set after reservations to stop publishing if the content is being published`	If the content is currently published, the reservation to start publication must be set after the reservation to stop publication. Please specify the end reservation first and the start reservation later.
400 Bad Request	`Cannot be reserved to stop publication while drafting`	You are specifying only a reservation to end publication for draft content. Please also set a reservation to start publication, or remove the reservation to end publication from the body.
400 Bad Request	`Reservations to stop publishing must be set after reservations to start publishing if content is in draft`	The reservation to end publication for draft content must be set after the reservation to start publication. Please specify the start reservation first and the end reservation later.
400 Bad Request	`Cannot be reserved to stop publication if the content is closed to the public`	You are specifying only a reservation to end publication for content that is closed to the public. Please also set a reservation to start publication, or remove the reservation to end publication from the body.
400 Bad Request	`Reservations to stop publishing must be set after reservations to start publishing if the content is closed to the public`	The order of the start/end reservations specified for closed content is incorrect. Please set the start reservation first and the end reservation later.

PATCH Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`Status: (0: must be a valid value.).`	An invalid value is specified in the body. Please check the content of the body.
400 Bad Request	`Status: the length must be exactly 1.`	An invalid value is specified in the body. Please check the content of the body.
400 Bad Request	`invalid user id`	An invalid user ID is specified in the body. Please specify an existing user ID.
400 Bad Request	`Request body is not JSON object.`	The JSON format specified in the body is incorrect. Please check the content of the body.
405 Method Not Allowed	`Method Not Allowed`	This is a request with a method that is not allowed. Please check if the URL is correct.

Media Operation Error Response

GET Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`Limit: must be no less than 0.`	The limit parameter has a value less than 0. Please specify a number between 0 and 100.
400 Bad Request	`limit must be less than or equal to 100`	The limit parameter has a value greater than 100. Please specify a number between 0 and 100.
400 Bad Request	`Invalid integer in query (limit=xxx)`	The limit parameter has an invalid value. Please specify a number between 0 and 100.
400 Bad Request	`Invalid boolean in query (imageOnly=xxx)`	The imageOnly parameter has an invalid value. Please specify true or false.
400 Bad Request	`Offset: must be no less than 0`	The offset parameter has an invalid value. Please specify a number greater than or equal to 0.
400 Bad Request	`Invalid integer in query (offset=xxx)`	The offset parameter has an invalid value. Please specify a number greater than or equal to 0.
400 Bad Request	`BadRequest`	The value of the token parameter is invalid or the token is expired.
404 Not Found	`Content not found`	No media exists with the file name specified in the fileName parameter.

POST Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`invalid request`	The format of the request is invalid. Please check the contents of the request body.
400 Bad Request	`request body too large`	The file size of the media being uploaded exceeds 5MB. Please reduce the size or upload it from the Administration console.
405 Method Not Allowed	`Method Not Allowed`	This is a request with an unsupported method. Please check if the URL is correct.

DELETE Method

Status Code	Error Message	Cause and Solution
400 Bad Request	`invalid url`	The specified URL is invalid. Please check if the URL is correct.
400 Bad Request	`this medium is referenced by another content`	It cannot be deleted because it is referenced by another content. Please remove the reference to the media from the source content.
404 Not Found	`medium not found`	The media to be deleted does not exist. Please check if the correct media URL is specified.
405 Method Not Allowed	`Method Not Allowed`	This is a request with an unsupported method. Please check if the URL is correct.

Member Operation Error Response

GET Method

Status Code	Error Message	Cause and Solution
404 Not Found	`Member not found`	The member you are trying to retrieve does not exist or is still pending invitation. Please specify a member who has already joined the service.