With 3.13.0 API release is possible deactivate and deactivate any Master Data object. A new property has bee added for this purpose, isObjectActive.
To deactivate an object the following JSON has to be used in the PUT method:
{ "isObjectActive": false }
To activate an object the following JSON has to bee used in the PUT method:
{ "isObjectActive": true }
Before to delete a Master Data object it has to be first deactivated.