Duplicate guests merge as they arrive

When the same guest shows up under two identities, merging them no longer breaks the trail back to the old record — and imports can no longer blank out details you already had. Contact records stay whole as data arrives from every direction.

• Emails and phone numbers from a merged record are kept as alternate identities

• Messages and webhooks referencing the old address resolve to the surviving contact

• Blank columns in an import leave existing names, emails, and phone numbers untouched

• Real corrections still overwrite, so fixing a typo works as expected