E-Invoicing Error Codes & IRN Generation: NIC Portal Troubleshooting Guide
Complete technical and regulatory troubleshooting guide for GST e-invoicing error codes on the National Informatics Centre (NIC) Invoice Registration Portal (IRP). Master error resolutions for 2150 (duplicate IRN), 2185 (invalid HSN), 2265 (pin-to-pin distance error), 2275 (GSTIN cancellation), schema validation failures, credit notes, and 30-day time-limit rules.

