Sir, I am looking for the valuable query, My client was a composition dealer up to March 30, 2025, and switched to a regular dealer on March 31, 2025. No purchases or sales were made on that day. The GST portal indicates that we must file the March return. We filed GSTR-1 as a nil return. However, when attempting to file GSTR-3B, the portal shows that GSTR-2B has not been generated for this period and directs us to use the Invoice Management System (IMS). Upon following the IMS process, we accepted the invoices, but the portal displays an error: ""Compute GSTR-2B undefined."" Additionally, we have not filed the ITC form within 30 days, as there was no stock. We have already filed the GSTR-4 annual return. Kindly clarify the issue. Thank you in advance. | anreads Forums | anreads