In this recipe, we start by validating that the Unified Communications Managed API 4.0 Runtime has been installed by validating that the ImplementationDLLPath has a valid value set.
Before creating the instant messaging override settings, we need to retrieve the thumbprint of the Exchange certificate assigned for web services. This is done by running Get-ExchangeCertificate and saving the thumbprint for the next step.
The next step is to create a new override setting for Outlook on the Web, defining the thumbprint that is going to be used for this. We are also specifying the Skype for Business server. The full cmdlet will be as follows:
New-SettingOverride -Name "IM Override" ` -Component OwaServer -Section IMSettings -Parameters ...
