ROS and SuS on same client

Hi,

We are having ROS and SuS (MM-SuS) in the same client.

For Supplier self registration, I understand that we need to Activate the Business function SRM_SUCO_1 and Customizing switch SRM_701_SUCO_SUP_REG .

Being ROS and SuS in same client (other than SRM Client), do i need to activate the cust switch in SuS client only and all the SICF  webdynpro activation as well as Questionaire and supplier collaboration setting in the SuS client and not in the SRM CLient.

Also the OPI setting for ROS-SRM communication will also be done in the SuS client???

Please clarify.

Regards

IS