I have a sizable Excel file filled with customer phone numbers and want to reach each person with a unique offer and link. I need purpose-built software that will take that spreadsheet, let me merge fields into an SMS template, and then fire off the texts one by one without further manual effort. Core needs • Import an Excel list and map its columns to message variables. • Personalize every SMS so each recipient receives the correct offer or URL. • Queue and send messages automatically, handling large volumes without throttling issues. • Basic delivery reporting or status log so I can confirm what was sent. Nice-to-have – A simple scheduler to stagger sends. – Option to edit or pause the queue mid-campaign. – Flexibility on platform (desktop or web) as long as setup is straightforward. Deliverables 1. Functional prototype ready for a live test with a sample data set. 2. Source code or build files so I can deploy or maintain the tool internally. 3. A quick user guide covering installation, message setup, and campaign monitoring. If you’ve built SMS gateways or marketing automations before, especially those that work with Excel imports, I’d love to see a demo or screenshot.