Short answer: use a password reset email for the normal US/EU SaaS login-recovery path; keep SMS OTP...

Short answer: choose an SMS-first authentication messaging API with direct OTP start and verification...

Short answer: use a password reset email for the normal US/EU SaaS login-recovery path; keep SMS OTP...

Short answer: for a beginner-friendly SaaS login in the US or EU, SMS OTP is the simplest managed...