Hi,

I have a workflow which creates a subsite. For this new site I create a new group, assign the role (Contribute) to the new group and assign the members to the new group - everything via web service., It seem’s  to work, I got no error messages, the group was created, the members assigned. But when a Member of my new group wants to open the new site, the error message “You need permission to this site” appears. If I change the web service where I assign a role to the new group from “Contribute” to “Full Control” everything works fine. For me it seems, that only the role “Full Control” is accepted?

I’m using Sharepoint 2019 on Prem