In the quickbooks export for payments, Quickbooks Online) wants to have the associated invoice #, so it can match payments to invoices. This can be done by putting the Invoice in the DOCNUM in the SPL row of the the export. Currently, Wild Apricot just repeats the payment number, causing my import to fail. I have to spend an hour manually looking up each invoice/payment and hand editing each SPL line. this seems to be an easy thing to automate.