You can merge a duplicate pair to eliminate the duplicate record and retain the master record. Specify the record that provides the surviving data when you merge the two records.
Select the account, lead, or contact record that has a duplicate.
Select the check box next to the record that you want to merge with the record you are viewing.
Verify that each duplicate pair is a duplicate of each other.
Click
Merge
.
Select the field values that you want to retain in the surviving record.