ayi <t>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.<br/> <br/> 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<br/> <br/> Azure Web Apps current move limitations updated 01/04/2016<br/> <br/> Hope this answer your question.</t>