Change content of the PO while using Approval Procedures

Question

When a PO is created as draft and waiting for approval we were able to find it back in the draft request list but not be able to do any change in the PO.
Is there any possibility to allow changes in the draft PO before the approval was done?
Also we need to know what happens if there is some change in the PO necessary after the approval was done and also if it goes back to the approval again in that case?
Thank you
Stephane

Answer 1

Hi!
You can reject the PO and the orginator can do the neccessary changes. Even after approving, the approver can reject the PO whn it is in Open Status.
Else you should not use Approval Proccess, instead use the Approval Check book in Logistic Tab.
1. Assign No Autho to all user except Purchase Head to the Approval Check Box
2. Write a SP which should validate the PO and User, only can add or update a PO only whn Approval Check box is unchecked.
3.By doing this, User can update the PO till it Closes, only thing is if Approver checked the Approved Check Box means, he should only uncheck that to make orginator to modify this.