Hi @andjor,

So it appears there is a solution ID (included in UPD9) and a workaround for this in place, as posted by @ToBeNL in the thread at: https://community.ifs.com/technology-infrastructure-cloud-integration-dev-tools-50/background-job-error-3315

This Background job is triggered by the Event ID ‘PURCHASE_ORDER_CHANGED’ which is a NotifyMe app related event. 

This reported issues is a known issue and already reported to RnD with solution Id 283137.Issue will be corrected and delivered in UPD 9 which is planned on end of August.RnD has provided a workaround for this. Please try the below workaround and send us your feedback. 

Workaround: 

The issue can be solved by changing the Event Action call to: 

BEGIN  

Transaction_SYS.Deferred_Call('Pur_Ord_Notification_API.Update_Notifications', 'Purchase_Order_API.Get_By_Rowkey(''&NEW:ROWKEY'').order_no', 'Notify Me - Update Purchase Order notifications.');

END;

Hope this helps,

Marcus