Apsona’s “Set the field” option only supports updating the primary object used in the merge or its parent objects (e.g., Opportunity, Account, Contact).
Limitation: Child objects such as Tribute cannot be updated when running the merge from another object.
Workaround: Run the merge from the Tribute object itself.
Configuration: Add Tribute to Apsona under Settings → Configurations, then clear cache.
Result: Once Tribute is set as the primary object, its fields will appear in the logging dropdown for updates.