WhatsApp Integrations

WhatsApp Business API integrations for automated customer messaging, order updates, and support flows, built on Meta's official platform.

API & Integrations

WhatsApp Integrations

req/s, zero deadlocks
15Kreq/s, zero deadlocks
double-charges in production
0double-charges in production
production systems shipped
10+production systems shipped
years building for clients
7+years building for clients
Sound familiar

Signs you need this now.

WhatsApp is the primary customer communication channel in many markets, but the Business API has strict approval requirements, template rules, and session-window limits that trip up teams trying to integrate it themselves. Getting it wrong means messages that don't send, get blocked, or violate Meta's policies.

01

Messages blocked by session window rules

WhatsApp only allows free-form messages within a 24-hour window after a customer last messaged you, and outside that window only pre-approved templates work. Teams that don't know this rule build flows that silently fail to deliver.

02

Template approval rejected with no clear reason

Meta rejects a message template for formatting or content reasons that aren't obvious from the guidelines, and the business has no idea why their order confirmation won't go through. That approval cycle can stall a launch by days.

03

No connection between WhatsApp and the actual business system

Support agents manually check order status in one system while replying to customers on WhatsApp in another, with nothing tying the two together. That disconnect turns WhatsApp into another silo instead of a real support channel.

Scope

What you get.

WhatsApp Business API setup and verification

Business verification, phone number registration, and Meta approval are handled end to end, so you're set up correctly on the official platform rather than an unofficial workaround.

Message template design and approval management

Templates for order updates, appointment reminders, and notifications are designed to meet Meta's approval criteria, reducing rejection cycles and getting you live faster.

Automated conversational flows

Order status checks, FAQs, and simple support requests are handled by automated flows, with clean handoff to a human agent when the conversation needs one.

CRM and order system integration

WhatsApp conversations are connected directly to your CRM or order management system, so agents see full customer context instead of switching between tools.

Session window and rate limit handling

Messaging logic respects the 24-hour session window and Meta's rate limits automatically, so messages don't silently fail to send outside allowed conditions.

Multi-agent inbox support

Incoming conversations route to the right support agent or team automatically, so WhatsApp functions as a real support channel rather than a single shared phone.

How it works

Four steps, no mystery.

01

Quick scoping call

A short call (or async over WhatsApp) to understand what you're working with and what "done" actually looks like for you.

02

Fixed scope, no surprises

A clear written plan of what's included and how long it takes, before any work starts.

03

The actual work

Progress you can see, not a black box. You get updates as milestones land, not just a status report at the end.

04

Handover

Everything documented and handed over cleanly, with a walkthrough so your team isn't stuck waiting on me for routine changes.

Related

You might also need.

Questions

Frequently asked.

It's part of the setup process — I handle the verification and number registration steps as part of the integration rather than requiring you to complete them first.

Start here

Tell me what you're dealing with.

Send a message and get a real reply within 24 hours, not an automated sequence.

Prefer email? info@hasnain.io

Or WhatsApp directly, same link as above