When executing the ES PurchaseOrderERPRequest_In_V1, it should trigger the confirmation service PurchaseOrderERPConfirmation_Out.
This is not happening in my case 😔
I've searched for notes and found one that matches the problem: 1676004 - Confirmation PurchaseOrderERPConfirmation_Out not being triggered after inbound PurchaseOrderERPRequest_In_V1.
The note states following cause:
In my case this is not true, since the workflow is active.
Did I miss another setup step?