How is WhatsApp marketing different from SMS, and do I still need SMS?
WhatsApp wins on almost every metric that matters in India, near-95% open rates versus 20-25% for email and far higher engagement than SMS, plus rich media (images, catalogs, buttons) that plain SMS can't do. Keep SMS as a fallback channel only, for the sliver of customers without WhatsApp or for OTP/critical transactional alerts where deliverability has to be guaranteed independent of any app. For a D2C brand in India in 2026, WhatsApp should be your primary messaging channel and SMS the backup, not the other way around.
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4 resources, 2 India-specific, 3 link-checked.
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The best global reference for SMS specifically, useful for the transactional/OTP fallback layer that still matters even in a WhatsApp-first Indian messaging strategy.
Makes the strongest ROI case for prioritising WhatsApp with concrete India performance figures, useful ammunition if you need to justify shifting budget away from SMS or email internally.
A second independent perspective on the India WhatsApp tool landscape from a competing vendor, useful for cross-checking claims before picking a platform.
The official source on how the WhatsApp Business Platform actually works underneath every BSP tool, worth understanding directly so you know what your BSP is and isn't doing on your behalf, especially around consent and opt-in rules.
