Hi Jamie,
You can add folders to several projects via an API call, but you need to specify the name of each folder and the ID of each project you need to create a folder in. Here's a call for adding folders on multiple projects:
https:/ /yoursubdomain .my.workfront.com/attask/api/v7.0/documentfolder?updates=[{name:" fill in a name for your folder ",projectID:" fill in your project ID here "},{name:" fill in a name for your folder ",projectID:" fill in your project ID here "}]&method=POST&sessionID= fill in your session ID here
Here's a call on how to generate the session ID in case you don't know:
https:// yoursubdomain .my.workfront.com/attask/api-internal/login?username= fill in your username &password= fill in your password &method=POST
Hope this helps. Anna
Anna Khachatryan Workfront