Seeing this error? Schema mismatches or invalid values cause the bulk JSON to be rejected. Below are the common causes and the fixes that resolve it for most users.
Why this happens
- The JSON does not match the portal's current bulk schema.
- Mandatory fields are missing or wrongly formatted.
- Date, GSTIN or HSN values fail validation.
- The file exceeds the allowed record limit.
How to fix it
Use the latest template
Download the current bulk JSON preparation tool from the portal and re-export.
Validate values
Check dates (DD/MM/YYYY), GSTINs and HSN codes before generating the JSON.
Split the file
Keep each upload within the record limit by splitting large batches.
Read the error report
The portal lists the exact line and field that failed — fix those rows.
Still stuck? Compare with other issues in the full error guide, or review the login guide.