1 July 2026
Enable Mobile OTP Verification for Customers Featured
You can now let customers verify using mobile OTP verification when they sign in to the Customer Portal, adding an extra layer of security. When enabled, Zoho Billing sends a one-time password to the customer's registered mobile number when they sign in. To set it up, go to Settings > Customer Portal > Default Login, enable SMS for Portal Authentication, and select Mobile Number. Customers can also verify using mobile OTP during checkout when User Verification is set to Sign In to Existing Account or Sign Up in the Hosted Payment Page template.