When using the invoice volume report, you are unable to find Service Orders, to assign it as a reference.
SAP Business ByDesign
Reproducing the Issue
Navigate to the Customer Invoicing work center.
Go to the Reports view.
Go to the sub-view Lists.
Choose the Invoice Volume report.
Service Orders, cannot be chosen as a reference.
It is the current system behavior and Service Orders cannot be used in Invoice volume reports.
It is the standard system behavior.
Invoice Volume, Service Orders , KBA , AP-CI-CI , Customer Invoice , Problem