A lot a like to the GSTR-2A, GSTR-4A is generated quarterly for composition scheme taxpayers. And it contains the details of the inward supplies as reported by suppliers in GSTR - 1.
The contents of GSTR 4A are:
Goods and Services Tax Identification Number (GSTIN), Name of the Taxable Person, Address and so on auto-populated on logging, Period of Return, Inward supplies got from enlisted assessable individual, data auto-populated from counterparty GSTR - 1 and GSTR - 5, Amendments to subtle elements of internal supplies got from enrolled assessable people in before impose periods, Revised Details assuming any, credit note, and its correction etc.