find following points
1. F-47 - Create Down Payment Request (Here in selection screen specify all the necessary details (Doc Type - KA) and press enter, on this screen specify amount to be paid in advance and also specify the PO Document and line item and SAVE)
2. F-48 - Down Payment Entry w.r.t. Down Payment Request No
3. F-54 - Down Payment Clearing
At the time of MIRO, it will pop-up that advance payment is done to this vendor against this PO.
Also take help of your FI Consultant if required
SAP ECC 6.0, Enhancement Package 4 (SAP_APPL 604), Business Function MM, Integration of Materials Management and Financial Accounting (LOG_MMFI_P2P), you can save down payment data in the purchase order, at both header and item level, which the system copies to financial accounting as default values. You can specify down payment categories, down payment amounts, down payment percentages, and due dates in the purchase order.
In the reportDown-Payment Monitoring for PO, (report RM06DPMONITOR), you can display all
the purchase orders with down payment-relevant data whose due dates are within a certain
period. In addition to the due date, you can use further selection criteria to select purchase
orders (for example, vendor, purchasing group, and document date). From the report, you can
display data for purchase orders and branch to the FI applications for creating and changing
down payment requests and down payments. You can change the default down payment data
also , if your in ECC 6.0 with EHP4 and want to process down payment clearing for Invoice processed via Logistics route, then remove the checkbox for component 'FI-PDP' in table TBE11 in SM30.
and recheck the process.