What's the difference between an 'auto match' and a 'complex auto match'?

Complex Auto Match means the phrase was found as part of a list of items.

When titleLOOK finds a list of items it recognizes, such as "Instrument 14224, 346667, 585855, and 23557799" it will create what we call a Complex Auto Match and stitch the label and each of the items in the list together. For the example above this would result in "Instrument 14224" "Instrument 346667" "Instrument 585855" and so on.