Matching AR Invoices with Receipt amount

Hi,

We are in JDE XE and we want to apply multiple invoices around 500 lines of one customer against an amount.  We tried to Import from excel in P03B102 Application but Discount amount cannot be brought in to the Import Excel file. If I use Select and chose Invoice amount the discount amounts are fetched automatically.  For Batch Upload like this what could be done.

Do you guys have any workaound for this?

Thanks

Vidhya