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WhatsApp messages

Connect your WhatsApp Business number, see which messages go to customers by themselves, and change their words.

3 min read Updated 19 Oct 2026

Names like these, in green, are pages inside your ArmPOS shop. Sign in to your shop to open them.

By the end you will know how to connect your WhatsApp Business number, which messages ArmPOS sends your customers by itself, and how to change their words.

This guide was written from ArmPOS's screens and code and was not run: it needs a WhatsApp Business account with Meta. Your plan sets how many WhatsApp messages you can send each month. If the page says WhatsApp is disabled by the platform administrator, ArmPOS has it switched off for now: you can set it up, but nothing is sent until it is on.

What it does

ArmPOS sends a WhatsApp text from your own business number when:

  • a sale is saved on Sales › Add sale (Invoice created (new sale)), and
  • a payment is added to a sale (Payment received).

Sales made at the POS don't send a message today. The customer needs a phone number on their record.

Connect your number

In Meta first: a Meta app with the WhatsApp Cloud API, its Phone Number ID and a permanent Access Token.

  1. Open WhatsApp › Settings.
  2. Fill the Phone Number ID and the Access Token. The WhatsApp Business Account ID and App Secret are optional.
  3. Set the Default Country Code, such as 256. It replaces the 0 at the start of local numbers.
  4. Switch on the Automated Messages you want, then click Save.
  5. Click Test Connection. Connection Status must turn Connected: no message is sent until it does.

The Webhook URL and Webhook Verify Token would let Meta tell ArmPOS when a message is delivered and read. The address shown doesn't answer Meta yet, so leave them for now: messages still go out, and Message Logs shows them as sent.

WhatsApp Settings: the note that WhatsApp is disabled by the platform administrator, Connection with Provider Meta Cloud API, Phone Number ID, WhatsApp Business Account ID, Access Token, App Secret, Webhook Verify Token, Default Country Code, Save and Test Connection; Connection Status Not Connected; Monthly Quota Used 0, Limit 50, Remaining 50; and the Webhook URL.
Messages go out only after a successful Test Connection.

Monthly Quota shows the messages used and left this month.

The messages' words

WhatsApp › Templates holds the texts. Each automatic message uses the template with its Key: invoice_created for a new sale, payment_received for a payment.

WhatsApp Templates: New Template, and the list with Name, Key, Language, Status and Actions: Order Status Update (order_status), Order Confirmation (order_created), Payment Received (payment_received) and Invoice Created (invoice_created), all Active.
Keep the keys invoice_created and payment_received: they tell ArmPOS which message to send.

Open a template to change its Message Body. Click a variable to add it: {{customer_name}}, {{invoice_number}}, {{total_amount}}, {{company_name}}, {{payment_status}} and {{date}} are filled in; {{order_status}} isn't yet. The Preview shows the result.

Renaming a template's key, deleting the template or switching it to inactive quietly stops that message. Deleting a template asks no question.

WhatsApp › Message Logs lists each message with its Status and any Error.

What's next

For texts by SMS, see Email and SMS settings.

Still stuck?

Write to us and a person answers. If you already have a shop, Ask support inside it sends us the page you're on.

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