Goods Return without any Document

Hi all,

I tried Goods Return (Sales) without any reference document (Invoice). The goods have received in warehouse in proper storage location and ATP(Available To Promise) is also increased. The only problem is Credit note cannot be generated. I tried to create credit note manually, but no result.

Tcode used : VA01

Order Type : ZG2

Returns with ref. to : w/o Original

Please tell me how to get credit note in this process.

Thanks,

Karan