As per SAP standard scenario for intercompany returns flow
1. RE(return order type ) to RE( Invoice) - possible
2. LR(returns delivery type ) to IG(intercompany return invoice type)
But we need --based on delivery both invoices
1. LR to RE (return Inovice type)
2. LR to IG (return intercomopany invoice).
Maintained copy control the same like above ...(LR to RE not exist as per SAP , created like LF to F2)
also maintained return order type in billing section delivery relavent type : RE (return invoice)
while creating invoice error " The document is not relevant for billing"
Let us know the suggestions.