Understanding why the presort is not getting DDU discounts for all of their Standard Mail letter crrt pieces on pallets in a MailStream Plus job

Products Affected:  MailStream Plus™, All Platforms
Why is the presort not getting DDU discounts for all of the Standard letter crrt pieces on pallets?
When you palletize a mailing, if the entry point receiving the mail does not offer Pallets as an accepted Mail Type, then MailStream Plus™ is unable to give the DDU discount for the pieces placed on pallets being delivered to that entry point. This is part of the Mail Direction file information or Fast information that is located on the MailStream Plus™ USPS Reference files for each entry point.   

UPDATED:  March 28, 2019