Dynamic QR Code requirement on B2C invoices clarified: UPI ID suffices, agents allowed, foreign recipient invoices exempt. Any invoice issued to a recipient holding a Unique Identity Number is treated as a B2C invoice and must carry the Dynamic QR Code. A provided UPI ID suffices without separate bank/IFSC details. An authorised collector's UPI ID may be used in place of the supplier's. Invoices to recipients outside India for services with place of supply in India need not include a Dynamic QR Code. Where invoice numbers are unavailable at payment time, a unique order ID linked to the invoice may be used. Dynamic QR Codes should reflect only the remaining payable amount after part payment, with full invoice breakdown shown on the invoice.