n8n WhatsApp Messaging Automation

I need a simple workflow in n8n that connects my active WhatsApp number—through the Evolution API—to a Google Sheet containing a column of phone numbers. The goal is straightforward: send one plain-text message to each number in the list and mark each row as “sent” (or similar) once the delivery call is triggered.

Here’s what I’m after:
• a clean n8n workflow that reads the sheet, loops through the numbers, and fires a Text messages call via Evolution API
• a single place in the workflow where I can edit the message body myself
• minimal logging so I can see which numbers ran successfully and which failed

I’m on a tight budget, so I only need the essential pieces: working nodes, basic error handling, and clear instructions on how to plug in my own API credentials. No rich-text, emojis, or media support is required.

When you reply, please link to or describe past work that shows you’ve built n8n or WhatsApp API automations before. That evidence will help me choose quickly so we can get this running soon.