To redeem a Microsoft gift card for Roblox, first redeem the card into your Microsoft account balance, then use that balance to buy Robux in the Roblox app from the Microsoft Store.

Steps

  1. Redeem the Microsoft gift card at Microsoft’s redemption page or Microsoft Rewards so the value is added to your Microsoft account balance.
  1. Install or open the Roblox app from the Microsoft Store and sign in to your Roblox account.
  1. In Roblox, go to the Robux purchase area and choose a Robux amount.
  1. At checkout, select Microsoft Balance or the Microsoft account payment method if it appears.
  1. Complete the purchase to add Robux to your account.

Important note

Roblox’s official gift card redemption page is for Roblox gift cards and promo codes, not for directly entering a Microsoft gift card code. If your Microsoft card is a Microsoft Rewards gift card, the usual path is to convert it into Microsoft balance first, then spend that balance on Roblox through the Microsoft Store version of the app.

Common issues

  • If you do not see Microsoft Balance at checkout, make sure you are using the Roblox app installed from the Microsoft Store.
  • If you only have a Roblox gift card code, redeem it on Roblox’s gift card page instead.
  • If the code was bought from Microsoft Rewards, check that it has already been redeemed into your Microsoft account before trying Roblox.

Quick version

Redeem the Microsoft card into Microsoft balance first, then use that balance inside the Microsoft Store Roblox app to buy Robux.

TL;DR: You generally cannot paste a Microsoft gift card directly into Roblox; you redeem it through Microsoft first, then spend the balance on Roblox.