# Webhooks Various events and notifications related to Backpack functionality, such as player validations and item redemptions. ## Player ID validation (deprecated) - [POST user-validation](https://developers.xsolla.com/ko/api/backpack/webhooks/user-validation.md): This webhook is deprecated. Xsolla sends the User validation webhook instead. Xsolla sends a webhook with the user_validation type to the webhook URL to verify that a player is registered in the game. The request is sent before moving virtual items or currency to the game process. ## Move item to game (deprecated) - [POST move-item-to-game](https://developers.xsolla.com/ko/api/backpack/webhooks/move-item-to-game.md): This webhook is deprecated. Xsolla sends the Successful payment for order webhook instead. Xsolla sends a webhook with the move_to_game type to the webhook URL to deliver the item to player in the game.