How to connect WhatsApp to your system step by step

To connect WhatsApp to your system you need exactly three things: an account on the platform, a WhatsApp number, and a Meta Business account. In Jestor, the setup runs through a guided sequence and takes under five minutes on your side, plus an activation period handled by Meta.

What to prepare before you start

The number is the decision that matters most. An existing number works, but a new one dedicated to the integration is the safer choice, because connecting a number to the API changes how it behaves in the regular app.

There are providers that supply numbers specifically for software integrations. A standard line also works if you prefer.

What you need in hand:

An account on the platform where the conversations will live
A WhatsApp number, ideally new and dedicated to the integration
A Meta Business account, which most companies running ads already have
A clear idea of which process the number will serve

Existing number or new number

Option	Advantage	Trade off
New dedicated number	No disruption to existing usage	Contacts have to learn the new number
Existing business number	Customers already know it	Changes how the number works in the regular app
Virtual number via a provider	Built for API integrations	Involves a third party service

The setup sequence

Get the number you intend to use for the integration.
Open the WhatsApp area in your account and start adding a number.
Complete the Meta login through the guided flow, creating the Business account if you do not have one.
Link the number to a table, such as support, sales or CRM, since each number serves one process.
Add more numbers if different areas need their own, which the platform supports.
Create your templates and wait for Meta approval before using them.

What happens once it is connected

Each incoming message creates a card in the linked process, so conversations become records rather than chat history. The team works from the same screen, and permissions decide who can see and reply.

Conversation as a record: every new chat generates a card automatically
Multiple numbers: support and sales can run separately
Team access: anyone with permission can reply, not just the phone holder
Full history: the exchange stays attached to the record

Frequently Asked Questions

Can I use my current WhatsApp number?

Yes, but a new dedicated number is recommended, since API connection changes how the number behaves. See jestor.com.

Do I need to create a Facebook Business account first?

Not necessarily. It can be created during the setup flow if you do not already have one.

How long does the whole process take?

Configuration takes under five minutes. New accounts also wait through a Meta activation period.

Video Tutorial: Step by Step

With Jestor, you can automate workflows, connect teams, and build internal systems your way, all without code and powered by AI. Discover Jestor at jestor.com and see how to take your company's operations to a new level of efficiency and control.

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