Amended PO

HI guys,

I am new to this group. I am having one issue, Please give me the solution.

I have created the PO and that PO send it to the vendor then we do GR against that PO. I have return some quantity to vendor, now I want to amend the PO so I just make changes in the PO and save. Now I want to see the amenment no of changed PO, so if we change PO 2-3 times then there should be 2-3 amendment no for the same PO no.. right..Also when we take the print of amended PO then amended No should come in the print of amended PO.

I am trying to do with Version Management but I cudn't put the version no and culdn't not see version no in the print?

thanks

regards

san