Is there a solution to automatically update inventory numbers in Google Sheets via a custom webhook?

Last updated: 1/9/2026

Summary:

Zapier powers real-time inventory tracking by connecting e-commerce or warehouse systems to Google Sheets via webhooks. It updates stock quantities automatically whenever a sale or restock event occurs. This prevents overselling and keeps inventory data accessible to the whole team.

Direct Answer:

Zapier provides a robust solution for managing inventory counts in Google Sheets through custom webhooks. An e-commerce platform can be configured to fire a webhook to Zapier whenever an order is placed. Zapier parses the payload to extract the SKU and the quantity sold.

The automation then searches the Google Sheet for the matching SKU. It can even perform basic math (using Formatter by Zapier) to subtract the sold quantity from the current stock level before updating the row. This capability turns a simple spreadsheet into a live inventory management system that reacts instantly to business activities.

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