Articled Assisstant
4 Points
Posted on 10 June 2026
This is a very common technical error on the GST portal. In image_d5819c.png, Mohd Aqib is facing an automated data-mismatch rejection.
When exporting goods with payment of tax, the GST portal does not require a manual refund application (Form RFD-01). Instead, the system automatically transmits the GSTR-1 data to the Customs EDI system (ICEGATE), which syncs with the corresponding Shipping Bills to process the automated layout scroll.
The catch is an in-built validation check: The automated data transmission only triggers if the IGST amount is strictly declared in Table 3.1(b) (Zero-rated supplies) of Form GSTR-3B. Because he accidentally filed it under Table 3.1(a) (Outward taxable supplies), the automated link broke, and the Customs system never received the data transmission.
Here is a ready-to-use, authoritative response for CA Club India that lays out the official solutions:
CA Club India Forum Response Draft
Hello Mohd Aqib,
This is a frequent data-entry mismatch issue. Because you reported the export values under Table 3.1(a) instead of Table 3.1(b) in your GSTR-3B, the system categorized your transactions as regular domestic sales. As a result, the automated transmission mechanism from the GSTN portal to the Customs network (ICEGATE) failed to trigger, leaving your Shipping Bills unvalidated.
Depending on your situational requirements, you have two distinct pathways to fix this and claim your pending refund:
Option 1: The Automated Adjustment Route (Recommended)
As per the official GST Portal guidelines, if you have ongoing export operations, you can structurally adjust the numbers in your upcoming filings to balance the ledger:
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In your next month's Form GSTR-3B, declare the previous mistaken export IGST value under Table 3.1(b).
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Reduce the exact same amount from Table 3.1(a) for the current month.
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Note: Ensure that your overall figures do not turn into negative values for the current reporting month while making this offset. Once this subsequent GSTR-3B is successfully filed and offset, the validation check will clear, allowing the matching data to be transmitted to ICEGATE for processing.
Option 2: Manual Refund via Form GST RFD-01
If you do not have sufficient domestic liabilities or export turnover in the subsequent months to clear out the balance via manual offsetting, you must opt for a manual routing:
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File an application under Form GST RFD-01 on the GST Common Portal.
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Select the category "Any Other" as your primary reason for the refund application.
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Upload a detailed computation sheet along with your original GSTR-1 (Table 6A), GSTR-3B filings, corresponding Shipping Bills, and a brief statement explaining the typographical entry error.
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The file will be routed to your Jurisdictional Tax Officer. Upon manual verification of actual export execution and matching payment offsets, the officer will issue the manual sanction order.
For an end-to-end technical evaluation of your return logs, error-code troubleshooting on ICEGATE, or assistance with manual draft formatting, you can connect with our specialized team at GST Refund Consultants.