Changes in GSTR-1 reporting-Phase 3 According to the advisory, "In this phase manual entry of HSN has been replaced by choosing the correct HSN from the given Drop down.

GSTN's mandatory B2B sales information and HSN code in GSTR-1, table 12, is creating issues for taxpayers with only B2C sales. The system isn't allowing filing due to a blank B2B HSN code column ...