If you've uploaded B2B invoices in GSTR-1 but some amounts weren't reported in your GSTR-3B for FY 2019-2020, you can still rectify this. You are permitted to report these missed invoices in your July 2020 GSTR-3B return. Remember to pay the applicable GST along with interest. It's also important to reflect these adjustments in Table 10 of your GSTR-9.
22 August 2020
A gst registered regular scheme dealer b2b invoices up load in gstr1.but some b2b invoices amount not reported in gstr3b in f.y 2019-2020. Question: Dealer difference some invoices amount reported in gstr3b for July,2020 return allowed.
24 August 2020
Yes the dealer can report the missed invoic ein GSTR-3B in JULY 20 and pay the tax as well as the interest. The effect of the same must also be mentioned in table 10 of GSTR-9.