SAP Message /BEV1/SR_MESSAGE033 - Delivery data is different from goods receipt data; see long text

Diagnosis
There is a difference between the delivery data and the goods receiptdata regarding material, quantity or unit of measure. An automaticadjustment is not possible.
Check whether the order items and the delivery items match.
If a goods receipt posting has already been generated and the deliveryitems have been changed since this posting, cancel the goods receiptposting. Afterwards repeat the goods receipt posting.