What 4B(2) represents
4B(2) is generally used to disclose ITC reversal that is temporary or otherwise tracked separately in GSTR-3B working. Books-only invoices often require close review here.
What 4D(1) represents
When a previously reversed invoice becomes eligible in a later month, it should be identified for reclaim and supported with original reversal details.
Why invoice history is critical
Without invoice-level tracking, teams may miss reclaim opportunities, reclaim twice, or fail to explain the movement from reversal to reclaim during review.
Suggested tracker fields
Financial year, month, supplier GSTIN, invoice number, invoice date, taxable value, tax amount, reversal month, reclaim month, current status and reviewer remarks should be retained.