To unapprove a previously-approved purchase request or PO: Note: You can unapprove an purchase request or PO only if you have been given that specific right. To grant these rights to a user, enable the "Allow the user to unapprove a purchase request" check box and/or the "Allow the user to unapprove a PO" check box found under "Expenses Options" toward the end of the Account > User > demographic dialog box. Once you have been notified that an purchase request or PO needs to be unapproved: 1. Log in to the Purchases module, click on the "Purchase requests" tab or the "POs" tab, and then click on the "Approved" sub-tab. 2. Click on the number of the relevant purchase request or PO, and then on the "Submit/Approve" link. 3. In the "Approval history" dialog, click on the link within the sentences found at the bottom of the history: "You can unapprove this purchase request/PO. Click here to continue." 4. Indicate the reason for unapproving the purchase request or PO in the "Reason" text field in the "Unapprove" dialog box, and then click on "Submit." You will return to the "Approval history" dialog box. 5. Once an purchase request or PO is unapproved, it will return to "Open" status, where its owner can modify and resubmit it for approval, or delete it if necessary. Please note: You cannot unapprove a purchase request whose items have been written to POs. You cannot unapprove a PO that has been either partially or fully fulfilled.