solutionVersionArn  
  The Amazon Resource Name (ARN) of a new model to deploy. To specify the latest solution version of your solution, specify the ARN of your solution in SolutionArn/$LATEST format. You must use this format if you set syncWithLatestSolutionVersion to True in the CampaignConfig.
To deploy a model that isn't the latest solution version of your solution, specify the ARN of the solution version.
For more information about automatic campaign updates, see Enabling automatic campaign updates.