Transport or Migrate BEx Query changes from one environment to another
In order to transport/migrate BEx query from lower environments to higher environment, follow below steps:
1) Login to SAP Logon Dev system
2) Go to T-code /nse01. Below screen will appear. Click on Display button at the bottom
3) You should be able to see your latest request number in the queue which needs to be transported/migrated to next system (in my case Quality environment)
4) Expand the request to root level and then starting downwards release each of the root requests first then the main one by clicking on Truck symbol (i.e. Release Directly). You'll be able to see all your changes in another system.