Possible to put a tolerance/variance that you want to allow on discounts when booking receipts?

 Hi,

I have frequently that customes take a little bit more discount then foreseen on the payment terms (for example the customer can take 2% which corresponds to 33 euro, but they take 35). We want to allow them to take this 35, but Oracle does not allow you book this during receipt entry.

Is there something in the setup that I can change to allow a certain variance to go through as discount?

I do not want to book an adjustment each time for these small amounts.