Receipt routing dispostion quantity in respect to 'Return to vendor'

Hello All,

My business process is :

1. We receive procured material

2. Procured material goes to Quality control department. Now QC rejects or approve material.

3. If QC rejects some quantity , rejected material is not payable in our business. Though we have to raise Purchase return document to vendor and material goes back to vendor with purchase return document.

Now JDE process mapping.

1. We receive material through P4312

2. Material is rejected by Quality Control Department (Through Receipt routing --> Row --> Disposition --> Quantity Rejected) it doesn't appear in P41202(Item availability) , it's only visible in P43252.

3. Now I want to create Purchase Return document. According to document 'Return to Vendor