If you identify that you have a duplicate account there are easy ways to merge the two so that no data is lost.

Content Codes
Locked Account Name: Item Content Codes

Click the App Launcher in the top left of the screen.

Search for "Duplicate Record Sets". Click "Duplicate Record Sets"

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guide provides step-by-step instructions on how to merge account records in Salesforce. By following these steps, you can efficiently consolidate duplicate account records, ensuring data accuracy and improving overall database management.