Yes, Meta supports and encourages marketing and promotional messages. Businesses can promote and market their products and services by sending Marketing message templates to their customers.

Marketing templates are flexible and may include promotions or offers, welcoming or closing messages, updates, invitations, recommendations, or requests to respond to or complete a new transaction.

Meta strongly recommends getting your clients to opt in before sending them marketing messages. This increases the chance that they'll respond favorably to your messages and minimizes reports of spam or blocked messages.

For more information, please see Meta's documentation here:

• Get Opt-in - WhatsApp Business Platform

• Marketing templates: information and examples