Integration Broker - Excluding a Field from a Message

Hello,

We are synching user profiles from Campus Solutions to HCM using Integration Broker. Some users are supposed to have a different Row Security Permission list in HCM than CS.

We want to prevent the update of Row Security Permission List in message USER_PROFILE. But when I try to uncheck the "Include" checkbox for field "ROWSECCLASS", its disabled. Then I disabled the queue, then I was able to uncheck the "Include" checkbox. Is this the right way to handle this?

Thanks!