PO Version Management

Hi All,

For PO version magmt. the following are the two cases..

1.) PO created, saved and released. Now after release i want to change the PO then new version should be created(without taking the print of PO)

How do i go about it.

2.) PO created, saved, released and ME9F. Now again i want to change the PO then new version should be created.

How do i go about it.

Pls help.

Thanks in advance.

Regards.