We experienced an incident in Visma Net ERP (version 10.32.0) concerning the scheduled processing of invoices. This incident occurred on January 22, between 08:32 and 17:32 CET.
At 08:32, we enabled a feature on our Microsoft SQL servers to improve processing performance.
However, by midday on January 22, we began receiving feedback regarding problems with invoice processing. Specifically, invoices were being sent to Autoinvoice even when they should not have been dispatched based on their status. In response, we stopped all scheduled services to prevent further escalation of the incident.
At 17:32, we disabled the feature that was suspected to be causing the issue, a suspicion that was confirmed during the subsequent investigation over the following days.
Based on our current understanding, these are the typical scenarios where invoices might have been incorrectly processed:
Invoices sent to Autoinvoice when they should not have been, due to their status, such as
Invoices sent to customers by email when they should not have been, due to their status, such as