Why am I unable to push GSTR-3B due to an ongoing generation or recent IMS changes that haven’t reflected in GSTR-2B?

You cannot push GSTR-3B transactions if the GSTR-2B generation is still in progress or if recent changes made in the Input Service Distributor (IMS) are not yet reflected in GSTR-2B. To resolve this issue, wait for the GSTR-2B generation to complete. If changes have been made in IMS, you must regenerate GSTR-2B to ensure the latest updates are included.

Once the GSTR-2B generation is complete or the recent changes in IMS are reflected in GSTR-2B, you can proceed to push and file GSTR-3B.