You can find duplicate records and merge them in two ways:- Find and Merge Duplicates - Using this feature you can select the record that may have duplicate records and merge its duplicates. For more information, see Merge Duplicate Records
- Deduplicate Records - Using this feature you can initially search for duplicate records based on Email, Company, Phone and Mobile number details and then merge the duplicates. See Also Deduplicate Records
Note: You can merge a maximum of only 3 records at a time.