Writing on phone OTP, WhatsApp, and Indian messaging.
Long-form engineering and product writing from the team building QuickAuth. No fluff, no thought-leadership. Real numbers, real code, real India-shaped problems.
Running WhatsApp support as a team: shared inbox + CRM
One WhatsApp number, a whole support team. A shared inbox with built-in CRM lets you assign chats, track contacts, and reply in the 24-hour window.
Build a no-code WhatsApp chatbot (with optional AI)
Drag-and-drop flows that reply, branch and update your CRM — then add AI only where it helps, with a clean human handoff. No developer required.
How to track WhatsApp template button clicks (the data Meta hides)
Meta reports delivered and read on WhatsApp templates but no click data on URL buttons. How a tracked-redirect wrapper recovers per-campaign button attribution.
WhatsApp-first OTP with automatic SMS fallback
Send OTP on WhatsApp first — cheaper, higher-converting, no DLT — then fall back to DLT-registered SMS the moment it fails. How a fallback ladder works.
Bulk WhatsApp campaigns through the utility lane
Reach your whole customer list, not just opted-in subscribers, by routing bulk messages through Meta’s utility template lane where content qualifies.
WhatsApp OTP vs SMS OTP in India (2026): cost, deliverability, DLT
At ₹0.115 per delivered auth template, WhatsApp OTP undercuts every Indian SMS route and skips DLT. The honest cost, deliverability and compliance comparison.
How to avoid a WhatsApp Business Account ban in India
WABA bans trace to three causes: marketing-categorised bulk sends, weak template copy, and flat-rate blasting. How Meta flags accounts — and how to stay green.
DLT registration for SMS in India: the complete 2026 guide
Every business sending SMS in India must register on DLT — entity, header, then template. The full 2026 walkthrough: costs, timelines, and mistakes to avoid.
Why your WhatsApp utility template got rejected — and how to fix it
Meta rejects 30-40% of utility-template submissions — mostly policy mismatches, not real violations. A categorisation-first rewriting playbook with examples.
Android SMS Retriever app-hash: the complete 2026 guide
The SMS Retriever API gives permission-free OTP autofill on Android — once you embed the 11-character app hash. How to compute, embed and test it safely.