Merge Conflicts (MDS Add-in for Excel)
Applies to: 
SQL Server - Windows only
Azure SQL Managed Instance
In the Master Data Services Add-in for Excel, if data has been changed on the server by another user, the publish will fail with a conflict error. To resolve this error, you can perform merge conflicts and republish the changes.
Prerequisites
To perform this procedure:
You must have permission to access the Explorer functional area.
You must have a minimum of Update permission to the leaf model object for the entity you are updating.
The active worksheet must have MDS-managed data.
The active worksheet must have a conflict error after you tried to publish your changes.
To merge conflicts
In the worksheet, select the row or cell that has the conflict error.
In the Publish and Validate menu group, select Merge Conflicts to open the Merge Conflicts dialog.
In the Merge Conflicts dialog, you can either:
Choose Latest and click Apply to undo the pending changes and reload the latest version from the server.
Choose Original and click Apply to apply the original version in the worksheet.
Choose Yours and click Apply to keep the existing local changes.
After you click Apply, you can make additional changes and publish again. Or you can click Cancel to cancel the update and reload the latest version from the server.