GST Customer Master Controls: GSTIN, Place of Supply and E-Invoice Errors
Customer master errors flow into invoices, e-invoices, GSTR-1 and customer ITC. Fixing GSTIN, state code and place-of-supply fields before invoicing prevents downstream corrections.
For broader context, see the GST Law & Practice Hub.
Customer master fields
| Field | Why it matters |
|---|---|
| GSTIN and legal name | Affects B2B reporting and customer ITC. |
| Billing/shipping state | Drives place of supply and tax type. |
| SEZ/export flag | Changes invoice and e-invoice treatment. |
| E-invoice fields | Prevents IRN validation errors. |
| Contact for GST corrections | Speeds mismatch resolution. |
For the connected rule, example or next step, see GST E-Invoice Master Data Errors to Fix Before Upload.
Preventive controls
- Validate GSTIN before onboarding.
- Lock tax type after place-of-supply review.
- Maintain SEZ/export documentation separately.
- Review master data before bulk billing.
- Track e-invoice rejects by root cause.
For the connected rule, example or next step, see GST Vendor Master Controls: GSTIN, Filing Status and ITC Risk.
Finin2min warning
Official sources used
This article is intentionally source-limited to official GST / CBIC / India Code material. Verify final filing positions with the latest Act, Rules, notifications, circulars and GST portal advisories before publishing.
- GST Portal: FAQs / User Guide for Form GSTR-1
- GST e-Invoice Portal: Validation rules
- Goods and Services Tax Portal
For the connected rule, example or next step, see Restaurant and Food Delivery GST: Platform, Invoice and Rate Controls.
FAQs
It drives invoice, e-invoice, place-of-supply and GSTR-1 reporting.
Incorrect GSTIN/state/ship-to details, duplicate data or tax mismatch can create validation errors.
Yes. Special tax treatment should be controlled at master-data level.
Source and review trail
Use the current official instrument, portal or regulator publication before acting. This panel separates the category authority from page-specific references.
- Primary category
- GST & Indirect Tax
- Official starting point
- www.gstcouncil.gov.in