Invalid __hot__ - Exchange 2019 Product Key

Here is how you debug the red banner and get your CU14 (or later) build properly licensed.

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There are several reasons why your Exchange 2019 product key may be invalid: Here is how you debug the red banner

Set-ExchangeServer -Identity -ProductKey XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Use code with caution. Copied to clipboard After running this, you must restart the Microsoft Exchange Information Store service for the changes to take effect. 2. Verify Your License Type exchange 2019 product key invalid