Checkout GST Number Field

Add a GST field at checkout to collect customer GST details and save them with orders.

GST Checkout Field helps merchants collect customer GST details during checkout and save them with orders. The app adds a simple GST input field that allows customers to enter GST information while placing an order. Collected GST details are validated and stored with the order for easy access in order management and invoicing workflows. The app works without theme changes and supports both mobile and desktop checkout experiences.

• Adds a GST field during checkout.
• Saves customer GST details with orders.
• Works without theme changes.