The documentation portal is undergoing maintenance. During this period, you can't create any new user credentials. If you do, you'll need to recreate the user credential after the maintenance period ends.
A group defines one or more unrelated tables that you want to copy to a subset database. Create a group to add unrelated tables to a plan, or to copy unfiltered data to a target.
When you add tables to a group, you can include residual tables in the group. A residual table is a table that has not been added to a group or entity. Select residual tables when you want to include all the tables in a source in a data subset plan.
When you edit a group, you can add or remove tables from the group.