How to upload e-invoice of SALE to Unregistered person (i.e, B2C)?

Reply—Supplies to registered persons (B2B), Supplies to SEZs (with/without payment), Exports (with/without payment), Deemed Exports, by notified class of taxpayers are currently covered under e-invoice.

Reporting B2c invoices by notified persons is not applicable/allowed currently. However, it will be brought under e-invoice in the next phase.