Fix Place of Supply-Wise Tax Validation Errors in GSTR-1
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How to Correct Place of Supply - Wise Tax Validation Errors in GSTR-1?
In this tutorial, we will guide you through the process of resolving Place of Supply (POS) wise tax validation errors while generating GSTR-1 in Logic ERP.
Generate GSTR-1 Return
Navigate to the GST Returns module.
Select GSTR-1 as the return type.
Choose the relevant time period for which you want to generate the return.
Click on the Generate button.

Upon generation, the system may display an Invalid Data Error.
Identify the Error
In the Export section, notice the red flag icon next to the affected entry.
The system message indicates:
“CGST/SGST tax is not allowed in export entries. Only IGST is allowed.”

You can also review detailed information under the GSTR Error Details section, which specifies that the issue is related to POS (Place of Supply) wise tax validation in one of the export invoices.

Open and Correct the Export Bill
From the Export section, click on the Invoice Number to open the respective bill.
Once the sales bill opens, change the Tax Region from CGST/SGST to IGST.
If the Save button is locked:
Turn off the Num Lock key on your keyboard.
Press Alt + Insert to unlock the Save button.

After unlocking, save the bill.
Regenerate the GSTR-1
Close the export bill window and return to the GSTR-1 screen.
Click on Generate again to refresh the data.
The red flag that appeared earlier will now turn green, indicating that the POS-wise validation issue has been successfully resolved.

In the GSTR Error Details section, you’ll notice that the POS-wise error count has now reduced to zero, confirming the correction.

Prevent Future Errors (Optional Configuration)
To avoid similar errors in the future:
Go to Setup → New Account.
Select the relevant Export Party Account.
Set the Tax Region to IGST by default.

Save the changes.
This ensures that all future export transactions are automatically configured with the correct tax region.
Export and Upload GSTR Data
Once the validation is complete:
Return to the GSTR-1 screen.
Choose to Export Data to Excel or Generate a JSON File.
Click Upload, and the data will be successfully exported to an Excel file.
Next:
Open the GST Offline Tool.
Click Proceed, then select Import Excel.
Choose the recently exported file and click Yes to import the data.
The return details will now be successfully added. You can view the summary and finally click on Generate File to complete the process.
Result
You have now successfully resolved the Place of Supply (POS) wise tax validation error and generated an accurate GSTR-1 return with correct tax region configuration.
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