Pokemon GO is still bustling with players, so it's important to take any advantage available. One of the more obscure advantages that players can take is the redemption of limited-time promo codes offered by Niantic and other companies.
Promo codes can only be used once per player in Pokemon GO, so players can't keep using the same code over and over again. These codes additionally all expire at some point, so it's important to redeem each code as soon as possible before it's too late.
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