Special unmerge scenarios
Main person removed from source system
If a merged main person is removed from its origin source system, the main person is automatically replaced if there is exactly one person to replace the missing main person and Automatic transfer is enabled. The missing main person's entitlements and data are transferred to the new main person.
In all other cases you receive an Unmerge or Replace Main Person suggestion; see Unmerge/replace suggestions.
Non-main person removed from source system
If a merged non-main person is removed from its origin source system, the person will be retained for 3 months. During this period, the non-main person is labeled as Missing.
Source system removed
If you Remove a source system which has merged persons, those persons are removed from their associated merge sets. Any merge sets with zero remaining non-main persons are removed entirely.
If the source system is re-added within the next 5 snapshots, all affected merge sets will be restored to their prior state. After 5 snapshots, the merge sets will not be restored.