Find and merge duplicates

1. 1Go to Settings → Data Deduplication (Duplicate Management).
2. 2Review the groups. Each shows a % Match and what matched. Change the Threshold to see stricter or looser matches.
3. 3Pick the Primary record: the one you keep.
4. 4Choose a Strategy: Fill Blanks (the default), Keep Current, Use Incoming or Combine All.
5. 5Leave Delete source after merge on to remove the other records once they're merged.
6. 6Click Quick Merge, merge the records you selected, or click Merge Cluster to merge the whole group.

A person's or company's profile also flags possible duplicates of that record.

To keep duplicates out in the first place, import with Create only or Update duplicates (see Import contacts from a spreadsheet).