When you need to specify claims found in a certificate for client or server authentication, you may need to submit a Thumbprint claim.
This can be performed also by using MMC. https://techdirectarchive.com/2020/01/05/how-to-retrieve-an-ssl-thumbprint-in-windows-using-mmc/
From the Start Menu, Search for PowerShell
– Right-click on it and select run as an Administrator
This will open up the Windows PowerShell. Run the follow cmdlets below.
Get-ChildItem -path cert:LocalMachineMy
In the screenshot above, you will be able to see the thumbprint, copy your desired thumbprint and paste wherever you wish to make use of it.