Hi Richelle,
You can try this -
If you do not have the payment program variant, I am assuming you will use a date range.
So, pass the date range in table DPAYH (field LAUFD) and group number as "1" (field GRPNO). You will get all the exceptions there.
If you want to check the exception reasons, export LAUFD, LAUFI and PAYNO from DPAYH to DPAYP.
You might get more than one entries there. Please check the field shorttxt (POKEN) in there. That field tells you the exception reasons. And, they are the all items that were exceptions.
Hope it helps.
Thanks,
Bodhisattwa