How to change vendor after Purchase requisition was approved

Hi All,

we have several reacons why the vendor should be changed in purchse requsition line after approval.

but, it doesn’t allowed to edit vendor already selected in PR line, because this PR was approved.

so I tried to change in table. but also impossible with same reason.

actaully, after PO was created, the vendor could be changed.

If we change the vendor in pr line by some modification, is there any bad or unexpected effects?

for example, PO could’nt be created from this pr.

or the others…

Can we change the vendor in already approved pr line? how?