Troubleshooting & Frequently Asked Questions

Why does my invoice show 0% tax or wrong tax rates?

This typically occurs when Shopify's native tax calculation is disabled or misconfigured.

To resolve:

1
In Shopify Admin, navigate to Settings > Taxes and duties.
2
Select India and verify that tax rates are configured for each state.
3
Ensure products in your catalog have "Charge tax on this product" enabled.
4
In SuperGST Settings > Tax Rates & Shipping, verify your Default Fallback GST Rate (usually 18.00%).

Why is IGST charged instead of CGST + SGST?

Indian GST specifies that CGST + SGST is only charged when the Merchant Origin State matches the Customer Delivery State.

If your business is located in Maharashtra (Code 27) and a customer orders for delivery in Karnataka (Code 29), Indian law requires levying IGST. Verify that your Merchant Origin State is set correctly in SuperGST Settings > Business Profile.

How do I regenerate an invoice if a customer adds their GSTIN later?

If a customer contacts you after placing an order to provide their business GSTIN:

1
In Shopify Admin, add the buyer's GSTIN and Company Name to the order (under Order Notes, Cart Note Attributes, or Customer Metafields).
2
Open SuperGST in your Shopify Admin and navigate to Orders (/app/orders).
3
Locate the order and click Regenerate (or select Regenerate Invoice from the row actions).
4
SuperGST dispatches a background task to re-render the PDF with the updated credentials and branding.

Note on Government E-Invoices:

If an invoice has already been issued an official Government IRN (e-Invoice), regeneration is strictly blocked to maintain statutory compliance and legal audit integrity.

Are generated documents compatible with standard printers?

Yes. Standard Tax Invoices, Credit Notes, and Pro Forma Invoices are rendered in high-resolution A4 format optimized for standard office and commercial laser printers.

Warehouse Packing Slips feature Code128 barcodes and can be printed directly from the browser print dialog.

What happens when my monthly invoice limit is reached?

Subscription plans include monthly invoice quotas:

Free Plan / Trial: 50 invoices
Starter Plan: 150 invoices/month
Growth Plan: 500 invoices/month
Scale / Pro Plan: Unlimited invoices (999,999)

When your store reaches its monthly order limit, invoice generation pauses gracefully without impacting customer checkout. You will receive an in-app banner alert. Once you upgrade your plan in Settings > Plans & Pricing (/app/pricing), all pending orders are processed automatically.