E-way bill in case of Sales Return

What is the document required in case of sales return from a customer. Can we prepare another Eway bill based on the original invoice for sales return since there would be no credit note available before receivnig the goods in our premises.

What exactly is the procedure to be followed in case of eway bill for sales return. Also does that make any difference whether the customer is B2C or B2B for sales return and eway bill generation.