Unable to carry out 122 mvt

Hi,

I have a PO with a material for which GR and Invoice receipt has been done.

Now I want to return the material to the vendor, hence want to do a 122 mvt.

I have reversed the invoice enrty.

However I am stll unable to do 122 mvt in MIGO

Getting following error message.

"Transaction cannot be posted due to error in price determination"

Message No. ME573

I am unable to figureout why this error is coming up.

Please advice

Thanks & regards