Impersonate a user
Sometimes you need the code in a plug-in to run in the context of a different user, for example to perform an operation on their behalf.
There are two ways to apply impersonation in plug-ins: at registration or execution.
At plug-in registration
When you register a plug-in step you can specify a user account to use when the code is run by choosing from the Run in User's Context option. By default this is set to use the Calling User, which is the user account which initiated the action. When this default option is applied, the SdkMessageProcessingStep.ImpersonatingUserId will be set to null or Empty.
More information: Register plug-in step
During plug-in execution
(IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory)); IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId);
If you want to override the step registration you can pass the value of the IExecutionContext.InitiatingUserId to have a service that will use the user account that initiated the action that caused the plug-in to run.
You can also provide the SystemUser.SystemUserId from any valid user account. This will work as long as that user has the permissions to perform the operations in the plug-in.
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