How to let admin to reset passwords for many accounts not manually at one time
PlayFab does not provide API that allow administrators to reset passwords for multiple accounts at once or reset passwords without sending account recovery emails. Besides recovery email, the other way is to let the administrator or developer to change the password manually in Game Manager. There is an admin API ResetPassword which can reset a player's password for a given title. But it also requires a token to authenticate the player, and this token is generated by the account recovery email. If you do need this feature, you may post a feature request for it.
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