Enter any group of guests who should recieve a single invitation as one entry: husbands and wives, families with young children, et. al. Add one member of the group as a guest, and then add information about the rest of the party on the GUEST PROFILE screen. To access a guest's profile, click on the guest name from any view in the Guest List Manager.
If you'd like people in the same household to receive separate invitations (parents with a grown child living in the same house), enter them separately.
Go to The Knot Guest List Manager
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Guest List Manager Help