Invoice Number Errors While Generating GSTR-2
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How to Correct Invoice Number Errors While Generating GSTR-2?
In this tutorial, we will guide you through the process of validating and correcting invoice numbers while generating GSTR-2 in Logic ERP.
Open GST Returns Module
Navigate to the GST Returns module.
Select GSTR-2 as the return type.
Choose the relevant time period for which you want to generate the return.
Click on the Generate button.

Identify Invalid Data Error
After generation, if the system displays an Invalid Data Error, it means that some invoice details are incomplete or incorrect.

In the B2B section, red flags will appear next to entries with issues.

The error reason will be displayed as “Invalid Invoice Number.”
Review Error Details
Open the GSTR Error Details section to view the error summary.
The details show:
Three B2B invoices with invoice number validation issues.
Error descriptions explaining the exact problem with each entry.

Correct Invalid Invoice Numbers
Go to the B2B section to begin corrections.
Based on the error description, note that:
An invoice number can contain a maximum of 16 alphanumeric characters.
Only certain special characters are allowed.
You can correct the invoice number by:
Opening the Purchase Voucher directly and editing the invoice number or Clicking on the Invoice Number directly from the error screen to open the corresponding voucher.
Update and Save the Voucher
Once the Purchase Voucher opens:
Update the invoice number as per the correct format.

If the Save button is hidden:
Ensure that Num Lock is turned off on your keyboard.
Press Alt + Insert to unhide the Save button.
Click Save to update the voucher.
Refresh and Regenerate the Return
Close the voucher window and return to the GST Returns module.
Click on Generate again to refresh the data.
In the B2B section, the previously red-flagged invoices will now turn green, indicating successful validation.

Resolve Blank Invoice Number Error
For any blank invoice number entries:

Click the Invoice Number field directly.
Enter the correct invoice number.
Save the voucher and regenerate the return again.
Once corrected, all red flags will turn green, confirming that all invoice number issues have been resolved.

Verify Error Clearance
In the GSTR Error Details, the earlier validation errors (for three invoices) will now show an error count of zero, confirming that all invoice numbers have been successfully validated.

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