Configuration > Move Existing Vuforia Studio Projects to Your New Experience Service
  
Move Existing Vuforia Studio Projects to Your New Experience Service
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This is not necessary for upgraded Experience Services. This is only required if you want to move projects from one Experience Service to another.
If you have existing projects that have been published using a different Experience Service, update the projects so that they’re configured to use your new Experience Service. To do this, configure Vuforia Studio to use your new Experience Service, open the project you want to update, and republish the project.
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If your Experience includes ThingWorx data, you must add the data again, and recreate that portion of the Experience since your ThingWorx server has changed.