Need help understanding ClientId in multitenant app using embeddable widget
Sorry for the newbie question, but I've scoured the docs without luck and am clearly just missing something.
I'm integrating the embeddable widget into our custom CRM, which is a multitenant web app. When I created my RC app in the dev portal, I tested using my user from that sandbox account, and the tutorials all had me setting up a clientId and adding that to the src url as a query param.
When I sign in to RC from within my CRM (using the widget) using a user from a completely different org (i.e. using a personal account), it doesn't seem to actually matter whether or not I include the clientId query param.
So, my question: do I actually need to include this query param if I simply want any one of our CRM customers to be able to sign in using the embeddable app and their org's RC credentials, (i.e. NOT my RC org). What am I missing here that's going to bite me when I release this to prod? Feels like it should be required, but it doesn't seem to be needed when I'm using a user account from outside of my org.