3344711 - Cannot Post Intercompany Supplier Invoice Due to Error Message

You have released the customer invoice through internal EDX and system creates an intercompany supplier invoices in exception. 
Error:
Item: Account assignment data missing for item; see Cost Distribution
Item: Purchase document ID canceled (KBA: 1577279)
Warning:
Item: The delivery note is not found. The delivery note does not exist or is inactive, or the supplier, buying company, product, product category, or product type in the delivery note differs from that in the supplier invoice.

SAP Business ByDesign

1. Go to Supplier Invoicing work center
2. Go to Invoices and Credit Memos view
3. Select the relevant Supplier Invoice 
4. Select Edit and click on Check button
5. Error appears

In the Purchase Order document, the Invoice Expected check box is not selected and hence invoice is not relevant. As a result, system shows the error message. 

Since this is an intercompany scenario, system created the supplier invoice automatically from customer invoice due to internal EDX settings. Since you do not expect the supplier invoice, you can void the supplier invoice. 

Account assignment data missing for item; see Cost Distribution; Purchase document ID canceled;  Inter-company supplier invoice not relevant , KBA , SRD-SRM-SI , Supplier Invoicing , Problem