WorkRelationshipPVO missing DFFs

Summary:

WorkRelationshipPVO is missing DFF's  such as PDS_INFORMATION%  and PDS_INFORMATION_DATE% columns from PER_PERIODS_OF_SERVICE.  We are using DFF's to populate custom fields.  We have critical reporting information in these columns.  So far, we used PDS_INFORMATION1,
PDS_INFORMATION5,PDS_INFORMATION_DATE1,PDS_INFORMATION2,PDS_INFORMATION3,PDS_INFORMATION4,PDS_INFORMATION_DATE2 .  

Content (please ensure you mask any confidential information):

WorkRelationshipPVO is missing DFF's  such as PDS_INFORMATION%  and PDS_INFORMATION_DATE% columns from PER_PERIODS_OF_SERVICE.  We are using DFF's to populate custom fields.  We have critical reporting information in these columns.  So far, we used PDS_INFORMATION1,PDS_INFORMATION5,PDS_INFORMATION_DATE1,PDS_INFORMATION2,PDS_INFORMATION3,PDS_INFORMATION4,PDS_INFORMATION_DATE2 .