I understand how to create a regular document set with Power Automate. You Send an HTTP Request to Sharepoint just like this:
Site Address at the top. Method: POST. Uri: _vti_bin/listdata.svc/Folder Path. Headers: Slug. Site Address/Folder Path/Folder Name | Document set ctype= I've been doing it for a while. But I can't seem to make a custom document set with this method, I put in the ctype= for the custom document set, and the flow fails. Does anyone know how to make a custom document set with Power Automate?