Question about MS Teams gloval variable created in developer portal

byungheesohn - In the Microsoft Teams Developer Portal, the "Global variables" are primarily intended for use as configuration values that can be accessed across your app's different environments, but they are read-only once set within the portal.
You can configure environments and global variables to help transition your app from your local runtime to production. Global variables are used across all environments.

Unfortunately, you cannot update these global variables programmatically from within your app code. To modify them:

1. Go to the Developer Portal.
2. Update the values in the Global Variables section.
3. Repackage and upload your app if needed.

Reference Document-Manage Apps with Developer Portal - Teams | Microsoft Learn