Articles on: PSL+

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.





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.






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.




Check the following:


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




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If Account, Set, Series, Location, Insurance, Free Field, or Currency Codes are outdated: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





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.




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.




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.





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.






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+.





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Updated on: 28/08/2026

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