Return Delivery By Using 122 Movement Type

Dear SAP experts,

The Following error is coming in MIGO transaction when i do the return delivery by using 122 movement type. The material is received and MIGO is done for full PO quantity of 100 PAA and MIRO is also done for the same . after that found some rejections . Now, i am making a return delivery to the vendor. In MIGO, i have selected the return delivery, material document and pressed enter. The display has come. I have selcted the item,the storage collection , qty, stock type is correct, entered the reason for movement and checked it. At that time, the following error is coming.

“”Deficit of PU IR quantity 20.00 PAA””

Is it possible to return the defect components by without reversing the Invoice receipt .

Even though i can able to create the MIRO (Credit Memo) but cant able to return the delivery by using 122 movement

Kindly check and provide the valuable suggestions