This feature was built specifically to prevent a spouse from overriding their spouses details if they share the same e-mail and/or mobile number. Over time we have found people that share the same e-mail and/or mobile number (even in 2021) causing some datat to be overwritten when the other person applies. This issue is only a concern if you have your spouse signing up separate vs. a joint account (where the spouse form creates a new crm record).
To enable this featurte, edit the Survey Application and check the box that says Verify applicants haven't already applied and are not a member before continuing through the application.
Once checked, when people first arrive at the application for the first time, they will be prompted to enter their e-mail and mobile number before continuing.
Upon entering their e-mail and/or mobile number, we will identify if they are already in the CRM to determine if they've already applied or are a member. If so, we will prompt them to inform them. If not, they can continue with the application.