SMS Fallback ensures your OTP reaches customers even when WhatsApp fails due to poor connectivity or app issues. This guide explains how SMS Fallback works as a backup system first attempting delivery via WhatsApp, then automatically switching to SMS if needed. Discover best practices for triggering fallback quickly, maintaining consistent OTP codes across channels, and choosing relia... https://anantya.ai/blog/sms-fallback-for-whatsapp-otp-india/