WhatsApp Business Account numbers (WABA numbers) may send Template Messages (also reffered to as notifications or HSMs) to any destination number worldwide.
360dialog does not charge any mark-up for template messages. Customers and Partners are only billed for the amount that needs to be paid directly to Facebook.
The current pricing is listed here. Please note that 360dialog uses the Euro pricing.
Facebook is currently testing a model of Conversation-Based Pricing in Mexico.
In this model, WhatsApp Business API conversations fall into two categories that are priced differently:
User-initiated, like customer care and general support inquiries.
Business-initiated, like post purchase notifications.
All conversations are measured in 24-hour increments, or "sessions", that start whenever the first message is delivered by a business. The first message can be a response to a user inquiry or a business-initiated message template being delivered.
Charges for conversations are based on the end user’s phone number. Rates for business-initiated conversations and user-initiated conversations vary by market (country or region). See Rates for specific pricing information.
The first 1,000 conversations each month are free. In addition, conversations will not be charged when a user messages a business using a call-to-action button on Ads that click to WhatsApp or a Facebook Page CTA.