This blog post breaks down the recent GST Portal advisory about Table 3.2 of GSTR-3B. It explains that starting July 2025, details of inter-state supplies to unregistered persons, composition taxpayers, and UIN holders will be auto-filled and non-editable in GSTR-3B. This information will come directly from GSTR-1 or IFF. The advisory aims to cut down on mistakes and keep data consistent. The post also covers why this change is occurring, how to fix errors by amending GSTR-1/IFF or using GSTR-1A, and offers an action plan for taxpayers to ensure they report accurately and smoothly file their GST.