Basware identified an issue affecting the visibility of certain invoice import failures in AP Automation.
Issue Start Date
The issue was introduced when AP Automation release 26.5 was deployed to customer environments.
Issue End Date
The issue was fixed in AP Automation release 26.7 and maintenance release 26.6.4.
Impact Summary
A change introduced in AP Automation release 26.5 to improve invoice import performance altered the way invoice save errors are handled.
Under certain circumstances, if an invoice import fails due to an underlying processing error, the failure may not be reported correctly. Instead, the invoice may appear as successfully delivered in BT and the Portal with the standard acknowledgement message "oK".
The issue does not itself cause invoice import failures. Rather, it prevents certain invoice import failures from being reported correctly, making it appear that an invoice was delivered successfully when it was not successfully imported into AP Automation.
As a result:
Impacted Documents
Basware identified the invoices affected by this issue and proactively notified impacted customers.
If you have concerns regarding invoices submitted during the affected period, please contact Basware Support. Basware can provide information about the affected invoices identified in your environment, investigate the underlying cause of the invoice import failure, and advise on any required corrective actions.
Affected invoices may appear as successfully delivered in BT and the Portal with the acknowledgement message "oK", even though they were not successfully imported into AP Automation.
Where necessary, Basware Support will assist with determining the appropriate remediation, including reprocessing or resubmitting affected invoices.
Solution
Basware has identified the root cause and implemented a corrective fix.
The fix restores the expected error handling behaviour so that invoice import failures can be detected and reported correctly.
The fix is deployed as part of AP Automation release 26.7 and maintenance release 26.6.4 between 23 July 2026 and 27 July 2026.
Customers will receive the fix as part of their scheduled AP Automation release deployment. The deployment date depends on the release phase applicable to their environment. Customers can find their exact deployment date under Service Status > Extended Release Schedule in the Basware Customer Service Portal.
The issue is considered resolved.
After the Fix
The corrective fix prevents future occurrences of this issue by restoring the expected error handling behaviour for AP invoice imports.
Basware has reprocessed all invoices identified as affected by this issue. Reprocessed invoices now receive the correct delivery status and acknowledgement message based on the outcome of the AP import.
Where invoice import failures occur, the actual error message is now returned, allowing the underlying cause to be identified and addressed.
In cases where an affected invoice had already been imported through separate corrective actions, reprocessing may result in a duplicate invoice. AP Automation duplicate detection controls will identify and flag such invoices for review.
Further Support
If you believe you are affected by this issue, or if invoices are missing from AP Automation while appearing as delivered in BT or the Portal with the acknowledgement message "oK", please raise a case with Basware Support.
When contacting Support, please provide:
This information will help expedite the investigation and resolution process.