Pokemon UNITE has been consistently helpful in terms of offering players more than a handful of methods to obtain the items they want or require in order to improve at the game or look the way they want to while playing.
TiMi Studio made sure that there was a system in place so that, even if a player acquires an item one way, they will not lose out on additional rewards in some way.
If you already have access to a Pokemon, for example, it will be reimbursed for free via an event or special set of challenges.
Every Pokemon in UNITE, except for Zeraora, is currently available for purchase in the Unite Battle Committee's in-game shop for a varying amount of either Aeos Coins or Aeon Gems. But don't worry. Even if you purchase a Pokemon that is also available as a free reward somewhere down the line, you'll still earn nothing.
Duplicates are converted into some form of currency for any item that is available as an event, energy, or battle pass reward.
If you purchased the Unite License on your own, earning Alolan Ninetails as a reward will instead net you 8,000 Aeos Coins, the equivalent of what you would spend buying it in the store.
This rule applies to UNITE cosmetics items as well.
If you roll a duplicate hoodie or Holowear in the Energy Rewards machine, you'll only receive another form of currency, like Fashion Tickets or Holowear Tickets.