I'm attempting to move an App Service from one service plan to another. When I use the portal to do so, the other App Service plan is not displaying.
Both App Services are in the same Location and Resource Group. The two App Services Plans are in the same location and have the same pricing tier.
I use the "Change App Service Plan" option for the web app. The only App Service Plan that is displayed is the current one. There is also a "Create New" option.
So, in summary: 1) Why is the other App Service Plan not able to be selected. 2) How can I move the App Service (Web App) to the other App Service Plan.
The reason why you are not able to see the other App Service Plan when you try to change the App Service Plan is due to current limitations in moving the Azure web app resources.
The other App Service Plan which you intend to move your Web Apps to is in another resource group with existing Azure Web Apps, which is not supported currently
Azure Web Apps current move limitations updated 01/04/2016
Hope this answer your question.