Update DataSet Credentials using Service Principal...

I have the exact same issue as this message. However we are using the .Net SDK and don't want to use powershell.

My Code:

The CredentialData object does have serialize commands to format the request properly:

To give a bit more detail, I get a 500 server error:

Theoretically there shouldn't be any major differences between the SDK, Direct API calls and Powershell commandlets.

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