Log on to CCAvenue with your merchant id, and click into the Send an Invoice/Bill page. Click on 'Send Transaction Completion Reminder'.

Fill in Order Id and click 'submit'. This Order Id must be the same unique number that will you had provided to CCAvenue in the customer's first attempt to purchase the product.

This will serve as a reference to be quoted across the three parties involved: namely; you, the seller; your customer; and CCAvenue.

On submission, CCAvenue will pull out your customer and transaction details from the database. Simply verify these, and click 'submit'.