3421147 - Process Communication Error: "Supplier Invoice YYY / YYY-1.1; Coding Block Assignment can not be changed" occurred in the Supplier Invoice.

There is a Customer Project Expense List XXX that contains a reference to Supplier Invoice YYY that is stuck in the Source Documents saying that Supplier Invoice YYY has not been posted in accounting. When checking the relevant Supplier Invoice YYY, under the Document Flow there is a red icon showing a Process Communication Error.

('XXX' refers to Customer Project Expense List ID, 'YYY' to Supplier Invoice ID)

SAP Business ByDesign.

Cost Distribution, Supplier Invoice, CPEL, Process Communication Error, Additional Cost, Coding Block Assignment. , KBA , SRD-FIN-GL , General Ledger , How To