If you're using Wati's Multiple WhatsApp Numbers feature, this guide explains how to use Wati’s API across different connected numbers.

Using multiple WhatsApp numbers in your Wati account lets you send and receive messages from different numbers. To make sure your API calls go through the correct number, you need to include an extra key in the payload or URL depending on the API you're using.

Below are the APIs that support multiple numbers presently and how to use them.

Endpoint:POST /{tenantId}/api/v1/sendTemplateMessage

For example, if you want the message to be sent from your default number, set channelNumber to that default phone number.

Endpoint:POST /{tenantId}/api/v1/updateChatStatus

The chat status will get updated for the Phone number submitted as value for “channelPhoneNumber”.

Endpoint:GET /{tenantId}/api/v1/getMessages/{whatsappNumber}

Here as shown below the query parameters Whatsapp Number and Tenant ID are required and to get the message from which number connected, need to specify as a query parameter

For example, to fetch messages from your default number, provide that number as value for channelPhoneNumber .

Endpoint: Post /{tenantId}/api/v1/sendSessionMessage/{whatsappNumber}

As shown below the parameter “Tenant ID” , “Whatsapp Number” & ‘Message Text” is required, and in the payload need to specify the “channelPhoneNumber”.

For example: To send a session message from Default Number. Specify the Default number as value for “channelPhoneNumber” in payload

The following APIs do not require a specific phone number to be set because contact data is shared across all connected numbers:

Note: You can find your Access Token and API endpoint details by going to the API Docs page in your Wati environment.