> Yes, the same email should have different identities when signed up as a brand and user. Okay. So we don't have different user pools at the moment, but what you can do is to override the backend functions (signUp, signIn, etc) to modify the input email in the following way (see this section: https://supertokens.io/docs/emailpassword/advanced-customizations/backend-functions-override/about): - If it's a brand user signing in / up, then change their email to add a

+brand

to it. So user@example.com would become user+brand@example.com - If it's a normal user signing in / up, then change their email to add a

+user

to it, similarly to the above point. This way, even if these users are all in the same user pool, a person can use the same email for both a brand and a user. This does not actually affect sending emails to them. > Different subdomains & Login on client side would be different on their respected subdomains Alright. Follow up questions: - Are you using our supertokens-auth-react package on the frontend or supertokens-website? - After logging in, would those users be redirected to a different sub domain or stay within their own sub domain?