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GST Basics & Troubleshooting
How do I set the GST rate for an item?
Select the applicable rate (5%, 12%, 18%, or 28%) when you add the item, either to your catalogue or directly on an invoice.
The rate is saved against that item, so it's applied automatically every time you bill it again.
I entered the wrong GSTIN for a customer. How do I fix it?
Edit the customer → Update GSTIN. Then check any invoices already created for that customer. If e-invoices were generated with the wrong GSTIN, those need to be cancelled (within 24 hours) and regenerated.
An HSN code is missing or wrong on my items. What should I do?
Go to Items → open the item → HSN/SAC Code and use the built-in lookup to find and save the correct code.
New invoices then use the corrected code automatically. Invoices already issued are unaffected. If one of those needs correcting, raise a credit note and reissue.
E-invoice generation failed. What causes this?
Check the error message. Common causes: GSTIN mismatch (yours or customer's), missing HSN code, missing customer address, IRP portal downtime. Fix the specific error and retry.
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