How to include custom voucher source in Approval Framework?

Hello,

We are in the midst of upgrading from FSCM 9.1 with PT 8.54.21 to FSCM 9.2.023 with PT 8.55.14.  One of the issues that we need to resolve very quickly is we are unable to approve vouchers from a custom source.  We successfully got them to display in the WORKLIST (Main Menu >> Worklist >> Worklist), where our accountants perform all their voucher approvals, but the corresponding "Link" (that takes them to the actual approval page) returns "no matching values were found" on the Voucher Approve AF page, aka Menu = ENTER_VOUCHER_INFORMATION, Component = VCHR_APPROVE2, Page = (search).  The same