CiviCRM Community Forums (archive)

I am doing several  updates through import and one fails with    Missing required   fields  as an error. I have one key field that is a unique id stored in a field in custom data and one field to update. I set the default strict dedup rule to the unique custom field with a value of 10 and set the threshold at 10. Other updates where I match on this field and first and last name work. is there a way to find out which rule is used in import - I thought it was the strict individual.