Control of vendor payment more or less than selected invoices

Hi Gurs,

When user making vendor payment through T.code: F-53 & F-58 selecting just assume five invoice amount is 180480 INR but user paid 180500 INR the difference  20 INR put on GL while using back arrow and Charge of diff. Client requirement is need to control for make payment more or less than selected invoice outstanding amount.

suggestion will be appropriated.

Regards,

Babu.