## Documentation Index Access the complete documentation index at: https://www.zoho.com/in/books/kb/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # How do I display my vendor/customer’s GSTIN in their transaction? To display your vendor/customer’s GSTIN: 1. Click the **Gear** icon and select **Preferences**. 2. Select **Customers and Vendors** tab. 3. Click the **Insert Placeholders** dropdown under **Customer Billing Address Format** or **Customer Shipping Address Format**. 4. Select **GSTIN** to insert it to the respective address format. 5. Click **Save**. ![Displaying GSTIN](/books/kb/images/gst/display-gstin.jpg) > Note: The GSTIN will be displayed only in the transaction PDFs along with the billing or shipping address.