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"Merge failed" error occurs on the "Unified data view" page in Dynamics 365 Customer Insights - Data

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Note

On September 1, 2023, we merged and renamed Dynamics 365 Marketing and Dynamics 365 Customer Insights. Dynamics 365 Marketing is now called Dynamics 365 Customer Insights - Journeys. Dynamics 365 Customer Insights is now called Dynamics 365 Customer Insights - Data. For more information, see Dynamics 365 Customer Insights FAQs.

This article resolves an issue where data unification fails due to a merge error.

Symptoms

The following error message appears on the Unified data view page.

Merge failed.

Resolution

  1. Verify upstream dependencies.

    Ensure the data sources are refreshed and the Match processes are completed successfully without any errors. Check the logs or status reports of these dependencies to ensure they're functioning as expected. Resolve any issues encountered in these upstream processes. For more information, see Define matching rules for data unification.

  2. Retry the Merge process by going to Data > Unify > Unify customer profiles.