Create a query of records with a blank import ID for the attribute:
 
  1. Create a student or applicant query
  2. On the Criteria tab, in the Available Fields box, select the appropriate filters for the grouping, such as Current grade, Current school, and Current status in the Student - Bio 1 category
  3. In the Attributes category, expand the relevant attribute, such as Library Card No. or Shirt Size
  4. Double-click the import ID field (such as Library Card No. import ID)
  5. In the Operator field, select Blank
  6. Select the appropriate fields on the Output and Sort tabs
  7. Select the Results tab