SMS Fallback is a safety layer that protects OTP verification from WhatsApp failures. When internet access or app availability becomes a problem, OTPs are sent through SMS automatically. This reduces login failures and improves customer experience in India. By adding SMS Fallback in the authentication process, businesses can maintain high delivery rates. Solutions from anantya.ai are ... https://anantya.ai/blog/sms-fallback-for-whatsapp-otp-india/