How to identify Sales Return originating from OM Integration into RMCS to build SLA Rule

Summary:

Need to identify Sales Return originating from OM Integration into RMCS, So, that i can build SLA Rule to drive specific GL Account based on Sales Return.

Content (required):

we have OM to RMCS integration, our requirement is that, in case of sales Return, the system should hit "Sales Return" GL Account instead of "Sales Revenue" GL Account.

as you know, if we don't have RMCS in our scope, we could handle this easily from AR module so that when the return SO create CM in AR the accounting entry would be Dr/Sales Return, Cr/Receivables

How can we fulfill this requirement in case the revenue recognition will be performed in RMCS?