Import only contacts you may use.
Open the data import section in Settings and use the supported CSV column headers. Review the accepted contacts before confirming; an invalid file is rejected with an error. Duplicate email identities are skipped when the import is committed, and the result reports the imported and skipped counts. Unicode names and alternate email identities are supported. An imported contact is not consent for automatic outreach.
Review a merge before confirming.
Choose the two contacts deliberately. Review conflicting fields before confirming. Existing details on the contact you keep take priority; empty fields can be filled from the other contact. The merge moves linked meetings, tasks, notes and related private context while preserving alternate identities. Matching names alone never trigger an automatic merge.
Undo has a safety boundary.
For 24 hours, the merge history can offer undo if the contacts and their linked records have not changed. New context or a later edit can make undo unavailable. This protects the newer work instead of restoring an older snapshot over it.