GSTR-2A is a system generated ‘draft’ Statement of purchase related tax return for a Receiver Taxpayer. When a seller files his GSTR-1, the information is captured in GSTR-2A. It takes information on goods and/or services which have been purchased in a given month from the seller’s GSTR-1.GST reconciliation primarily involves matching the data uploaded by the suppliers with those of the recipient’s purchase data. This basically includes comparing the GSTR–2A auto-populated from suppliers data and the purchase data recorded by the receiver of the supplies.
GSTR 2B is an auto-generated Input Tax Credit Statement (ITC) which has been recently introduced on the GST portal. It is generated on a monthly/quarterly basis and aims to simplify ITC claims for registered taxpayers.
you can reconcile your GSTR2A and GSTR2B by using this automatic tools