WhatsApp automation that respects the rules the platform actually enforces
WhatsApp is not email with a green icon. Outside a 24-hour window opened by the customer messaging you, businesses may only send pre-approved template messages, templates are reviewed and can be rejected, and quality ratings drop when people block or report you. We build on the official Business API with opt-in recorded, templates written to be approved, and the session-window logic handled in code rather than hoped about.
- WhatsApp Business API
- Node.js
- TypeScript
- Webhooks
- Queues
- PostgreSQL
What usually brings people here
- 01
Messages fail outside the session window
Free-form replies sent more than 24 hours after the customer's last message are rejected. The support agent thinks it sent; the customer never receives it.
- 02
Templates keep getting rejected
Promotional wording in a utility template, unclear variable placeholders, or a category chosen wrongly. Each rejection is another review cycle before anything can go out.
- 03
Opt-in was never recorded
Numbers collected from an old spreadsheet with no evidence of consent. Complaints and blocks follow, the quality rating falls, and the sending limit falls with it.
- 04
The number gets restricted
High block rates or reports push quality into the red and messaging limits are cut. Recovering a damaged sender reputation takes far longer than earning it did.
- WhatsApp Business API account and number setup
- Opt-in capture with a stored consent record
- Template drafting, categorisation and submission
- 24-hour session window handling in code
- Order, booking and appointment notifications
- Two-way conversation routing to your support desk
- CRM and order-system integration
- Delivery, read and failure reporting with opt-out handling
From first call to steady state
- 01
Establish consent before anything else
Where the number came from, what the customer agreed to receive, and how they stop. Recorded per contact, because that record is what protects the channel.
- 02
Design the templates to pass review
Correct category, clear variables, no promotional content dressed as a utility message. Getting this right first time saves a week of resubmission.
- 03
Encode the window rules
The system knows whether a conversation is open and sends a template or a free-form message accordingly, so agents cannot accidentally send into a closed window.
- 04
Watch quality, not just delivery
Block rate, report rate and quality rating are monitored, and volume is scaled deliberately rather than pushed until the platform intervenes.
Benefits & business outcomes
What changes when this work is done properly — not activity metrics, business results.
- 01
Official Business API, not grey-route risk
Templates, session windows and quality ratings handled in code — so a growth hack does not get the number banned.
- 02
Opt-in and consent recorded
Outbound messaging only where policy allows, with audit of who consented — required for ecommerce development notifications and appointment reminders alike.
- 03
Order and appointment updates that arrive
Status events from your systems mapped to approved templates, with fallback when the 24-hour session is closed.
- 04
Support conversations with context
Inbound messages routed with customer and order context attached, so agents are not starting from a blank chat.
The stack for this work
- WhatsApp Business API
- Node.js
- TypeScript
- Webhooks
- Queues
- PostgreSQL
- Redis
- E-commerce sending order and delivery updates
- Clinics and services with appointment reminders
- Support teams handling enquiries on WhatsApp
- Businesses whose customers will not use email
Working remotely with teams in United States, United Kingdom, Canada, Europe, United Arab Emirates, Saudi Arabia, Singapore, Australia, New Zealand and India.
Industries we serve
The same engineering patterns apply across sectors — the domain language and constraints change.
- E-commerce & D2C
- Clinics & healthcare booking
- Education & coaching
- Logistics & last-mile
- Hospitality & travel
- Local services & field ops
- BFSI customer ops
Why choose BuildsInfinity
Practical reasons teams choose BuildsInfinity for whatsapp automation — grounded in how we actually work, not a slogan list.
- 01
Policy literacy built into the build
Template rejection and quality drops are product risks. We write templates to clear review and design session logic correctly the first time.
- 02
Tied to your systems of record
WhatsApp is a channel, not a CRM. Automation pulls from orders, bookings and tickets so messages stay accurate.
- 03
No fake throughput promises
Throughput and cost follow Meta's pricing and your quality rating. We model that honestly before launch.
Related services
Business Process Automation
End-to-end automation of approvals, onboarding, invoicing and reporting — mapped from how the work is really done.
Workflow Automation Services
Reliable automations between your existing systems — retries, idempotency, failure alerts and a run history you can inspect.
Robotic Process Automation
Software robots driving legacy interfaces where no integration exists — built defensively, and treated as a bridge.
Need whatsapp automation?
Send a paragraph about the problem and you will get a considered reply from an engineer — a shape, a rough timeline and an honest view on whether we are the right fit. Request a consultation or project estimate anytime.