Validates a pipeline and initiates processing. If the pipeline does not pass validation, activation fails.
Call this action to start processing pipeline tasks of a pipeline you've created using the CreatePipeline and PutPipelineDefinition actions. A pipeline cannot be modified after it has been successfully activated.
 Declaration Syntax
 Declaration Syntax| C# | 
ActivatePipelineResponse ActivatePipeline( ActivatePipelineRequest activatePipelineRequest )
 Parameters
 Parameters- activatePipelineRequest (ActivatePipelineRequest)
- Container for the necessary parameters to execute the ActivatePipeline service method on AmazonDataPipeline.
 Return Value
 Return ValueThe response from the ActivatePipeline service method, as returned by AmazonDataPipeline.
 Exceptions
 Exceptions