I am creating an app for recruiters and I need to connect recruiter to consultants as they log in, I need to create a unique identifier to each recruiter-not sure how this process works. Help please 
Their email address is the unique identifier
I am creating an app for recruiters and I need to connect recruiter to consultants as they log in, I need to create a unique identifier to each recruiter-not sure how this process works. Help please
Their email address is the unique identifier