When records are merged, an entry should appear in the ACTIVITIES panel. It should show who merged the records so that follow-up can be made if records were merged incorrectly.
Heading: Quality Control
Body: Records merged
When merging records the Master is stored in the Master ID field in the subordinate record so you can create a workflow that runs on Contact entity when the record status changes.
Add a check condition step to check if Master ID contains data and the Contact state is inactive (this will prevent the creation of connection when a record is only being deactivated)