Chatbot

Designing Two-Way WhatsApp Journeys After a Bulk Send

Designing what happens after someone replies to a WhatsApp campaign: using the 24-hour service window, bot and human handoff, and keeping context.

Arjun Mehta Published 15 May 2026 Updated 1 Jun 2026 12 min read

The money is in the reply, design beyond the first template.

Quick answer: The money is in the reply, design beyond the first template. WappBlaster runs on the official Meta WhatsApp Business Platform at a flat ₹7,999 / $200 per year with 0% markup on Meta conversation charges.

Why this matters in 2026

A chatbot is a design problem before it is a build problem. The hard part is deciding what the bot should refuse to do, not wiring the blocks together, so the sections below spend more time on scope than on configuration.

Recommended workflow

  1. Step 1: List top replies from last 3 blasts
  2. Step 2: Build button tree covering 80% intents
  3. Step 3: AI handles long-tail with KB retrieval
  4. Step 4: Anger keywords → human in 60 seconds
  5. Step 5: Close ticket with CRM disposition code

Production checklist

  • Map top 10 post-send intents
  • Button trees first, AI second
  • Live queue for angry users
  • Close loops with CRM notes

Metrics to track

  • Delivered %
  • Read %
  • Reply rate
  • Opt-out rate
  • Conversation cost per reply

How WappBlaster helps

WappBlaster is an official Meta WhatsApp Business Platform provider. The platform covers bulk campaigns, the chatbot and automations builders, AI agents, the shared inbox, commerce and payments, with no per-agent or per-contact charge. If you are already with another provider, migration keeps your number and messaging tier and generally takes 1–2 days.

Bulk WhatsApp Marketing API Software (₹7,999/yr, 0% markup) · Legal bulk guide · Complete API guide.

Frequently asked questions

What should happen after someone replies to a broadcast?

The reply opens a 24-hour service window where you can respond free-form without template costs or restrictions. Designing for that window is where most of the value of a campaign is realised.

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Should a bot or a human handle the reply?

A bot for anything structured and predictable, a human for anything else, with a clear handoff. The mistake is making everyone talk to a bot first regardless of what they said.

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How do I keep context when handing to a human?

The conversation and the contact record travel together in the shared inbox, so the agent sees what the bot captured. Asking a customer to repeat what they just typed is the fastest way to waste the reply you paid for.

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Does replying to a campaign cost extra?

No. Messages inside the open window are part of the same conversation for billing, which is another reason to resolve things in one session rather than across days.

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Still not answered?

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Arjun Mehta

Head of WhatsApp Business API, WappBlaster

Arjun Mehta leads WappBlaster’s official Meta WhatsApp Business Platform practice, bulk campaigns, chatbot, shared inbox and BSP migrations for 1,000+ India, UAE, USA and UK brands.

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