I try to assign vendor to my PR my using MB57 but it never display my PR based on my Material
i already make Auto PO check box tick in my both material master and also in vendor master
why that search page never shows my PR
then i tried in ME5A to display the PR based on my material
there also no result for my search
why what reason
Two things in your worry/querry:
1. Auto PO: If you want to do an auto, a vendor should be there for in the fixed vendor column, auto po checks in material and vendor masters, inforecord for this plant/vendor/material combination are must. Then go to ME59n and enter the PR number in right place and execute. You will achieve the requirement.
2. ME5A: In this you will have some check marks in middle of the screen. Selcet all, may be missing any. Make sure that no other parameter is plugged in.
As said above, it is best to go to SE16 and query EBAN and find out whether you created a PR or not. Put in the date when you created it and execute. If you have created any, you will see it there.
Let me know if you still have any questions...