@DougHiggs - Unfortunately, no cigar on this one. When I activated the skip over existing records, it skips importing the next 20 lines of the AP voucher instead of checking for existing records in AP history. I also have the adjustment field assigned to No which I thought would reject the record. It appears that I need some perform logic to check the AP history table for the existence of a record. BTW, client is on v4.3, not v4.4 as I had posted above.