Can’t merge accounts. These accounts have the same related contact. Remove the redundant account-contact relationships and then try merging again.
When Salesforce’s Contacts to Multiple Accounts feature is enabled, merges may fail with errors like above.
Salesforce requires manual cleanup of duplicate relationships. DataGroomr removes this step by automatically resolving redundant contact–account relationships so merges can complete successfully. Rollback and undo operations also preserve account-contact links and related records, ensuring data integrity even when reversing merges.
For more details, see: Merging Duplicate Contacts and Accounts in Salesforce.