How to raise invoice if reciepient has just applied for gst registration

This discussion addresses how to issue an invoice when the recipient has just applied for GST registration and has an ARN. Three potential methods are explored: issuing a B2C invoice (which prevents the recipient from claiming Input Tax Credit), issuing a B2C invoice now and later revising it to B2B once the GSTIN is active, or issuing a B2C invoice and then raising a credit note to issue a new B2B invoice. The user also seeks clarification on the mechanism of credit notes.