Build a Vonage Message Custom Activity with Salesforce Marketing Cloud

Here is a summary of the provided text in 1 paragraph: This tutorial introduces a starter template for creating a Vonage Messages API activity in Salesforce Marketing Cloud Journey Builder using Heroku, allowing users to send marketing campaign messages using Vonage Messages API and Salesforce Marketing Cloud Contacts. The process involves setting up a Heroku account, creating a Vonage application, configuring Salesforce Marketing Cloud Contact Builder, and deploying the custom activity package to Heroku. Users can then configure the journey builder to send SMS or WhatsApp template messages to recipients in their CSV data extension, with options for editing the message body and adding parameters from the contact builder attribute group. The tutorial concludes by highlighting further possibilities with Vonage AI Studio and multiple data extensions, offering resources for users to explore further.