Hi @문 민수
According to our official documentation, it will take a few hours for the modification to take effect.
To change the icon of an app in the Microsoft Teams store, please check that you have followed these steps:
- Sign in to the Teams admin center as an administrator and visit Teams Apps > Manage Apps.
- Search for the app you want to customize with the app name and make sure it can be customized.
- Select the app's row, then select Customize in the toolbar of the Manage Apps page.
- In the right sidebar, provide updated values for the app information you want to customize and then apply.
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