We are working on Tridion User group Reconciliation. So, we are checking if there is a possibility to add the Publications to users groups using Tridion Core Service. Kindly help with this.
You can download the Core Service API reference documentation here. If you look at the documentation you can see that the Groups are represented by the
GroupData class. In GroupData, you can set the User's group membership by using the
GroupMemberships property and each membership is represented by the
GroupMembershipData class. In GroupMembershipData you'd want to add the publications using the
Scope property in GroupMembershipData.
This answer might help you too.