The redemption service allows you to associate a ticket purchased by another person with your account, so that it can appear in the “My tickets” section. After a redemption, the ticket won’t be visible in the account of the original purchaser any longer, and it will be possible to manage it directly by the new holder, also for the resale and name change services, where applicable.
If you have purchased the ticket with your own account and it is visible the “My tickets” section, it is not necessary to use the redemption service.