Phone Numbers

Your WaConnect account can have one or more WhatsApp phone numbers assigned to it. This page explains how phone numbers work and how to specify which number to use when sending messages.

Default Phone Number

When your account is created, the administrator assigns one or more phone numbers. One of these is marked as the default. If you send a message without specifying a phoneNumberId, the default number will be used automatically.

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You can view your assigned phone numbers and see which one is the default in the Dashboard under the Phone Numbers tab.

Sending from a Specific Number

If your account has multiple phone numbers, include the phoneNumberId field in your message request body to specify which number to send from:

{
  "to": "15551234567",
  "body": "Hello from our support line!",
  "phoneNumberId": "106540352242922"
}JSON

Phone Number ID vs. Phone Number

The phoneNumberId is not the phone number itself. It is a unique identifier assigned by Meta to each registered WhatsApp Business phone number. For example:

Phone Number	Phone Number ID	Display Name	Default
+1 (555) 123-4567	`106540352242922`	Sales Line	Yes
+1 (555) 987-6543	`209876543210123`	Support Line	No

Adding a New Number

To add a new WhatsApp phone number to your account, see the Connect Your Number guide. You can connect your own Meta Business Account and phone numbers to the platform without needing to create a Meta Developer App.