The purchase order number is no longer entered when performing reverse stock receipts, instead a 'Stock Receipt Number' is selected by clicking which will list all stock receipts, most recent first, for the product code and warehouse code entered.
NOTE: With reverse receipts no longer being based on a purchase order number Jump To (F8) - Reverse Receipt from the Purchase Order Enquiry screen has been removed however Jump To (F8) - Reverse Receipt has been added to the new Stock Receipt Enquiry and the Stock Receipt - Line Detail screens.

Stock Adjustments - Reverse Receipt Screen

Stock Receipt Number Lookup Screen
The remainder of the process has not changed (negative quantity and reason)
These changes have been made to allow:
1.Original invoice/delivery docket numbers to show in the stock movement records against reverse receipts
2.Reverse receipts to be performed on stock receipted without a purchase order
3.Where multiple receipts for the same product on the same purchase order have been performed, this will ensure that the correct invoice/delivery docket number and cost price are used for any reversals and that the value on the correct unposted invoice is adjusted (if it exists)
If the receipt being reversed originated from a purchase order, the purchase order line will still be re-instated so the goods can be receipted again at a later time.