To use this module, you need to:

#. Follow the instructions in the partner_deduplicate_acl addon to set up the
   correct user permissions.
#. Go to *Contacts > Tools > Deduplicate Contacts*.
#. Mark "'Is a company?' field selected", "Parent company not set" or
   "Parent company set (Contacts)" in the section 'Exclude contacts having'.
#. This criteria will be used for excluding in the deduplication the selected
   kind of records.