I've done this now for 5 of the 7 vendors. 2 of the vendors don't show a prepayment line for me to match the invoice to
Not quite sure what is meant in the latter part about the maximum amount on the pp entry created.

EDIT: I've noted that the 2 that don't show a prepayment line in the manual check batch still show as negative system checks rather than prepayments in the vendor profile transaction details