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# Amending Purchase Orders with PSL+

Purchase Orders created in DPO can be amended when changes are required. An amendment creates a new revision while keeping the original P.O. ID.

###### How to Amend a P.O.


1. Open the P.O. you want to amend.
2. Click the **pencil icon**.
3. Confirm the amendment process.
4. Update the required information.
5. Click **“Amend P.O.”**

|| For more information about the amendment process, see [How to Amend a P.O. in DPO](https://help.digitalpurchaseorder.com/en/article/how-to-amend-a-purchase-order-7xfy29/).



![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_155cxse.png =1054xauto)


###### P.O. Still Awaiting Approval

If the P.O. has not yet reached final approval, the changes synchronize to PSL+ while the P.O. remains:
**W – Awaiting Approval**

###### Previously Approved P.O.


If an approved **O – Open** P.O. is amended, PSL+ changes the status to:
**N – Needs Reapproval**

After final approval, the P.O. returns to **O – Open**.
![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/untitled-design13_1tcv8tr.png =922xauto)

###### Which Lines Can Be Amended?


DPO only allows amendments to detail lines that are still **open in PSL+**.
Closed, transferred, or relieved lines cannot be amended.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/screenshot-2026-08-28-at-13240_1m93zii.png =761xauto)

### Important Fields

Changes to important P.O. information, such as the **vendor, amount, P.O. number prefix, or currency**, require the P.O. to be **amended in DPO**.

Using the amendment process ensures that:
* The change is properly recorded in the **DPO audit trail**.
* The existing P.O. and its history are preserved.
* Existing links and synchronization between **DPO and PSL+** remain consistent.
* The updated P.O. follows the required **approval process** before the changes are synchronized to PSL+.


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**Contact us**
**Email**: [support@digitalpurchaseorder.com](mailto:support@digitalpurchaseorder.com)
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