Need BAPI OR FM for F-54(Clearing Vendor Down Payment) Transaction

Dear Experts,

    I need BAPI or FM for f-54 i.e. Clearing Vendor down Payment. I have searched lot but not getting any proper solution.I also try with BAPI_ACC_INVOICE_RECEIPT_POST , POST_DOCUMENT and other FM also.

   Please provide me any BAPI OR FM with ABAP code will be rewards.