3686656 - Error FIN_CORR/342 – Output item could not be determined in "Create Correspondence" App

When attempting to preview SAP21(FI Customer Invoice) correspondence using the "Create Correspondence" app, the system throws the an error.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP S/4HANA Cloud Public Edition

SAP 21, fi customer invoice error, create correspondence app, output item not determined, cx_fi_correspondence, no output parameters, output channel error, cx_fi_corr_request_error, pdf document retrieval error, output parameter determination, form template filters, role filter, recipient language filter. , KBA , FI-AR-AR-CR-2CL , Correspondence (Public Cloud) , Problem