It is an electronic way bill that is required during the movement of the goods and it needs to be generated from the e-way bill portal. As per the rules, a person carrying goods of value worth more than Rs. 50,000 (single invoice), must have an e-way bill with them.
For the generation of the e-way bill, apart from the portal, it can also be done through SMS, android, and through site-to-site integration via API by using the correct GSTIN.
An e-way bill number is available with the generation of an e-way bill which is available to the recipient, transporter, and to supplier.