2926805 - Cancelled Project Invoice Request Causes Problem in Subsequent Customer Invoice - Italy

You are not able to release a Customer Invoice due to the following error: Conflict detected in item XXX of Project Invoice Request ID ABC; release not possible

But since the Tax Country of the Customer Invoice is Italy you are not able to cancel the Customer Invoice as described in KBA 2925079 - Not Possible to Release Customer Invoice Due to Error: Conflict detected in item XXX of Project Invoice Request ID ABC; release not possible

SAP Business ByDesign

Project Invoice Request, Conflict, Credit Memo, Cancellation, Italy, Sequential Numbering, Invoice, Cancel; disabled; grayed out, greyed out. , KBA , AP-CI-CI-GLO , Cross-Country Extensions , How To