Why I Cannot Delete Some Contact Lists in Enquire MAP
If a contact list is referenced in a campaign, or workflow action (i.e., Send to sales, Send to Marketing) you will not be able to delete the list until the references are removed.
References to lists by objects (campaigns, workflow actions) that are in the trash retain their referenced list associations, so you may want to empty your trash to remove references.
Please reach out to the dedicated Enquire Account Manager or Enquire MAP Support team for further assistance.