With wfgroupremovewfgroup you cannot remove all the workflow groups from a workflow group, as this will result in an invalid workflow group configuration. In that case, the command aborts and an error message informs you about the abort cause.

As the workflow group should not be emptied, the command enables you to remove all the workflow groups from the parent workflow group only if the workflow group also contains a workflow. This way, after removing all the workflow groups, the parent workflow group is not empty. See the figure below, The wfgroupremovewfgroup Command.