Exchange 2019 Product Key Invalid ✦ (Tested)

Locate your product key in the correct portal based on how the license was acquired:

New-ExchangeCertificate -GenerateRequest -ServerName "YourServerFQDN" -FriendlyName "Exchange Certificate" -PrivateKeyExportable $true -KeySize 2048 -SubjectName "cn=YourServerFQDN" -DomainName "autodiscover.yourdomain.com","mail.yourdomain.com" exchange 2019 product key invalid

Copy-pasting from a PDF or email often includes a hidden space at the end. Locate your product key in the correct portal

: The graphical interface sometimes fails to process keys that are otherwise valid. exchange 2019 product key invalid