LORD scenario and VBAK-VBKLA

HI we have a requirement to be able to identify sales documents created in ECC and via the CRM webui in the LORD scenario. Unfortunately both appearing to be setting the value for originating system to A not CRA  as it would if we were truly creating via CRM.  Can any confirm if this value can be changed via configuration or via a suitable BADI or do we need to enhance the LORD API ?

Thanks