Bulk WhatsApp Messaging from Google Sheets via WasenderAPI
Automates bulk WhatsApp message sending from Google Sheets using WasenderAPI. Reads pending rows, sends messages via your WhatsApp number, updates status to 'sent', and polls every 10 seconds safely.
This n8n workflow enables budget-friendly bulk WhatsApp messaging by pulling data from a Google Sheet. It filters rows with 'pending' status, sends personalized messages through the unofficial WasenderAPI using your personal or business WhatsApp number, and marks them as 'sent' upon success. The process repeats every 10 seconds, respecting API rate limits to prevent blocks.
Ideal for marketers, small businesses, freelancers, and support teams needing scalable outreach without the WhatsApp Business API costs. Save time on manual messaging, personalize at scale with sheet data like names, and track campaigns effortlessly. It's perfect for promotions, notifications, follow-ups, or customer updates.
Setup is straightforward: duplicate the provided sample sheet, add contacts/names/messages with 'pending' status, configure Google Sheets credentials in n8n, input your WasenderAPI key (~$6/month), and activate. No coding required.
Customize by adding Wait nodes for delays, modifying HTTP payloads for media/templates, or integrating dynamic personalization from sheet columns. Requires Google Sheets API access and a WhatsApp-linked WasenderAPI account.
New buyers can create an account from the cart to unlock a controlled $10 first-purchase credit on eligible orders of $25+.
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How to import this workflow into n8n
- 1Purchase or download the workflow to get the n8n workflow JSON file.
- 2In your n8n instance, open Workflows and choose "Import from File" (or paste the JSON with Ctrl+V on the canvas).
- 3Open each node marked with a credential warning and connect your own accounts and API keys.
- 4Run the workflow once manually to verify the data flow, then toggle it to Active.
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