The cancellation invoice is created and released successfully, however the approval status is still Not Started. You expect that the approval status on a released invoice should be Approval Not Necessary or Approved.
SAP Business ByDesign
Reproducing the Issue
You have enabled the approval process for manual invoice in Business Configuration.
Go to Customer Invoicing work center.
Go to Invoice Documents view.
Find the cancellation invoice ABC. (ABC represents the ID of the invoice).
You notice that the invoice is Released already, but the Approval Status is still Not Started.
When you cancel the customer invoice XYZ(XYZ is the ID of the Customer Invoice for which Cancellation Invoice ABC is created), the system triggerrs a approval task. Once the Approval task is approved, only then the Cancellation Invoice is created and Released. The Cancellation Invoice ABC itself is not sent to approval, hence the approval status of the Cancellation Invoice is Not Started
This is the current system behavior as designed.
Aprpoval Status; Cancellation Invoice , KBA , SRD-CRM-INV , Customer Invoicing , Problem