There is no more contacts to merge for this request...
Select the list of fields used to search for
duplicated records. If you select several fields,
Odoo will propose you to merge only those having
all these fields in common. (not one of the fields).
Selected contacts will be merged together.
All documents linked to one of these contacts
will be redirected to the destination contact.
You can remove contacts from this list to avoid merging them.