If there is already an option to use Data Import for the Purchases Invoices (PI) and also for Payments on Account (POA) on the supplier modules, it makes sense to have the allocation of the POA to the relevant PI also available under Data Import.
We have over 100 payments a week; can't imagine someone with a 1,000 wanting to allocate individually.
Guest
This Tool from Adept can allocate during an import of SR & PP Transactions https://www.adepttools.co.uk/adept-sage-50-transaction-csv/