R01 :: An invoice requires both an existing purchase order and a receipt record before automatic payment occurs.
R02 :: An invoice variance of exactly EUR 10 is within tolerance.
R03 :: An invoice variance above EUR 10 blocks automatic payment.
R04 :: For a blocked invoice, an Accounts Payable analyst is permitted to ask for a corrected invoice, but is not obliged to ask.
R05 :: Only the receiving team may record goods receipt, and Accounts Payable cannot record goods receipt.
R06 :: The person who changed supplier bank details must not approve payment to those details.
R07 :: For a service invoice, an authorised service acceptance replaces the goods receipt record.
R08 :: Service acceptance does not replace the purchase-order requirement.
R09 :: A dispute freezes the payment clock until the dispute is resolved.
R10 :: After dispute resolution, the payment clock resumes from its paused value rather than restarting at zero.
R11 :: An invoice number is unique only within a supplier, and different suppliers may reuse the same invoice number.
R12 :: The tolerance is assessed per invoice, and not against the monthly sum of a supplier's invoices.