I am using the COS API “Update the Template” (PUT /content/api/v2/templates/:template_id) to add additional content to a template, but the operation fails with “The remote server returned an error: (405) Method Not Allowed.”
The endpoint being used is http://api.hubapi.com/content/api/v2/templates/1...5?hapikey=… (where the template Id and API key are correct values). The request body is JSON data with just the id, label and source values.
Should this operation work? If so, why is it failing?