https://learn.microsoft.com/de-de/dotnet/api/microsoft.xrm.sdk.iorganizationservicefactory.createorganizationservice?view=dataverse-sdk-latest
IOrganizationServiceFactory.CreateOrganizationService(NullableGuid) Method (Microsoft.Xrm.Sdk) |...
Returns an IOrganizationService instance for the organization that the specified user is a member of.
methodmicrosoftxrmsdk