What is Mergo used for?

In one line I would like to say, Mergo is meant for Email Campaigns is designed to streamline the process of managing and sending large-scale, personalized email campaigns directly from Google Sheets. Some flexible features like Templates, Scheduling, Tracking and Analytics are well structured.

Sending large numbers of emails with Gmail/Google Workspace. It gives you open-tracking, the ability to unsubscribe, and you can insert items from spreadsheet columns into your emails -- IE: "order number", name, etc.