How to Send WhatsApp Template Messages

There are several ways to send template messages:

- via Notification API
- via Post Message API
- via Shorthand Syntax

The easiest way to send a template is by using the Notification API. We recommend reading the documentation carefully to ensure proper implementation. 

Namespace:

When the Customer Advocacy Team provides you with the activation link, they will also provide you with the namespace for your WhatsApp Business Account. Please keep this information as it is a requirement to send WhatsApp templates. If you lose your namespace, please reach out to Customer Advocacy ([e-mail]) to retrieve it.

Customers who use WhatsApp with both Zendesk Support & Sunshine Conversations who want to send templates can use all three methods; however, if they want to send templates using the Zendesk subdomain, they must use the Shorthand Syntax method.  

Template Limits to be aware of:
- Template name: 512 characters
- Body: 1024 characters (variables included).
- Header (text) / Footer: 60 characters each
- Image / Document: must be less than 25MB
- Call to Action (phone number): 20 characters
- Call to Action (URL): 20 characters + possibility to add a variable -> see here
- Number of templates per WhatsApp Business Account: 250 (default). After WhatsApp approval, it can be raised to 1500.
- Supported languages

Meta documentation can be found here.