Adds auto-enrollment groups for a Device Add-In on a specific database. Devices in the listed groups will be auto-enrolled in the Add-In going forward, in line with MyGeotab's auto-enrollment behaviour. Only reseller users can call this method. Use GetAvailableAutoEnrollmentGroups to discover valid group IDs for a database. Groups already configured for the Add-In are accepted by MyGeotab and treated as a no-op for that group. is required: null, empty, or entries that are null/whitespace will be rejected with a MyAdminException. MyGeotab groups are hierarchical. Adding a parent group ID implicitly includes all of its descendant (child) groups — devices in any child group will also be auto-enrolled. Pass only the highest-level group ID needed; there is no need to enumerate child groups individually.