brotherton-erpnext/erpnext/docs/user/manual/en/regional/india/gst-remimders.md

Sending GST Reminders

You can send email reminders to your Customers and Suppliers so that they can directly add or update their GSTIN numbers

To send GSTIN Reminders, you can either open the Customer / Supplier record or GST Settings

Here you can click on the "Send GSTIN Update Reminders" button to send email reminders to all your customers

Updating GSTIN

Your customers will receive an email asking them to update their GSTIN and that email will link them to a portal page:

Here they can update their GSTIN and it will automatically be added to your customer GSTIN record.

Sample GSTIN Reminder Email