at 3B this msg is showing "System has not generated summary of Table 3.1(d) and Table 4 of FORM GSTR-3B on the basis of your GSTR-2B as same is not generated for the current tax period."
& at 2B "GSTR-2B is being generated and should be available by 14/08/2021. Either you do not have any records in GSTR-2B or the generation is still in progress. If you are still not able to access it, please raise a ticket with GST support team." this msg is showing..
31 August 2021
Mostly it is because, you might not had made any purchases from a registered supplier or you might had made but none of them had filed their GSTR 1 within their due date. Check 2A once, if they had filed after due date, then you will get those entries reflected in your next month ie., August month GSTR 2B