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# PSL+ Troubleshooting

Use this guide for common synchronization and integration issues between DPO and PSL+.

###### First: Check the Sync Status on the Document

Before checking any of the issues below, open the affected **P.O. or invoice** and review the **Sync Status** displayed directly on the document. If DPO provides a specific reason, follow the displayed instruction first.

For more detailed synchronization information, see **PSL+ Synchronization & Resync**.


![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_dt1cu7.png =1014xauto)


###### Invoice or P.O. Matching Is Different in DPO and PSL+


The AP integration is **one-way from DPO to PSL+**.
Changes to invoice/P.O. matching performed directly in PSL+ are not automatically synchronized back to DPO.

If a match needs to be removed:
1. Do **not** unlink it directly in PSL+.
2. Open the invoice in **DPO**.
3. Use **Match Mode** to unlink the invoice and P.O. item.
4. Make the required corrections in DPO.
5. Allow DPO to synchronize the updated information to PSL+.

|| Important: Performing an unlink only in PSL+ can result in inconsistent matching information between both systems.



![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_vrg3ol.png =1183xauto)


###### Supplier Is Not Showing in DPO


If a supplier created in **PSL+** is not visible in DPO, this may be because the DPO book is configured to require certain supplier information, such as an **address or email address**.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_1yv2zak.png =1105xauto)


Check the following:

1. Check that the supplier in **PSL+** has a complete address, including:
    * **Street**
    * **ZIP / Postal Code**
    * **City**
    * **Country**
2. Make sure the supplier has a valid **email address**.
3. Clear the **integration-related cache**.
4. Refresh DPO.
5. If the supplier is still not visible, contact your **DPO Administrator or Support**.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_n579ij.png =1051xauto)


### Account Codes Are Not Updating


If Account, Set, Series, Location, Insurance, Free Field, or Currency Codes are outdated:

1. Open the **PSL+ administration area**.
2. Click **Resync**.
3. Allow synchronization to complete.
4. Refresh DPO.


![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_151rnfr.png =801xauto)


###### P.O. Is Approved in DPO but Still Awaiting Approval in PSL+


Once a P.O. has been **fully approved in DPO**, its status should be updated accordingly in PSL+.

If the P.O. is **Final Approved in DPO** but still shows **AW – Awaiting Approval** in PSL+, the synchronization may not have been completed successfully.

**Check the Sync Status on the P.O.**

1. Open the affected **P.O. in DPO**.
2. Check the **Sync Status** displayed at the top of the P.O.
3. If a reason is displayed, follow the provided information to resolve the issue.

**Check the Synchronization History**

If no detailed information is available directly on the P.O., you can review the synchronization history:

1. Go to **Settings → PSL+**.
2. Click **“Show History.”**
3. Select **“Show Synced Tasks.”**
4. Search for the relevant **P.O. number**.
5. Click the **Sync Status** to view more information about the synchronization.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_1bsqheu.png =1080xauto)


###### Synchronization Task Failed


1. Open **Synchronization History**.
2. Locate the failed task.
3. Click **Show Details**.
4. Review the error.
5. Click **Requeue Now** if appropriate.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_zwuzsd.png =1010xauto)


###### Invoice Is Not Exporting to PSL+


If a fully approved invoice is not exported to PSL+, check the following:

* **Tax Account Code** – Make sure the tax account code used on the invoice also exists and is available in **PSL+**.
* **Invoice Matching** – Make sure all invoice items are correctly matched.
* **Supplier** – If multiple P.O.s are linked to the invoice, make sure they belong to the **correct supplier/vendor**.
* **P.O. Distribution Lines** – Make sure the relevant P.O. distribution lines are available for matching and have not already been transferred, closed, or relieved.


**Check the Sync Status**

* First, open the affected **invoice in DPO** and check the **Sync Status** displayed on the invoice. If DPO has identified the reason for the failed synchronization, the information will be shown there.
* If the displayed information does not resolve the issue, check the detailed synchronization history under **Settings → PSL → Show History**.
* If the invoice still cannot be exported after correcting the issue, contact **DPO Support**.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/image_yoza6x.png =1008xauto)



###### P.O. Is Not Available in the Matching Screen


If a P.O. or P.O. item is not available when trying to match an invoice, check whether the item is already linked or unavailable for matching.

**Check the P.O. in DPO**

1. Search for the relevant **P.O.**
2. Open the P.O. and enter **Match Mode**.
3. Review the existing links between the **P.O. items and invoices**.
4. Check whether the required P.O. item is already linked to another invoice.


![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/screenshot-2026-08-28-at-10090_1vrdxwz.png =1022xauto)



**Check the P.O. in PSL+**

If the P.O. item is not already linked in DPO:

1. Open the corresponding **P.O. in PSL+**.
2. Make sure the P.O. line has **not been manually linked or transferred to an invoice in PSL+**.
3. Check whether the relevant P.O. line is **closed**.
4. If the line was closed incorrectly and should still be available, **reopen the P.O. line in PSL+**.


![](https://storage.crisp.chat/users/helpdesk/website/-/7/e/f/8/7ef8b3dbb012a000/screenshot-2026-08-28-at-10093_m1tznk.png)


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