Update a custom page set

Update a custom page set based on the provided parameters. To update a field, provide the field with the new value. To remove a field, provide it as null. To keep a field unaltered, do not include it in the request. Note: name cannot be removed. When updating a custom page, include all the fields that you want it to have. Any field not included will be removed. Deprecated. Will become unavailable after Sun, 13 Dec 2026. Use Update custom page set (V2) instead.