Often a flow will make use of SharePoint Site URL or Dynamics environment URL multiple times and I was hoping that I could store this in a compose/variable and make use of it throughout my flow. Although you can store them in compose but it won't resolve to provide you details, hence making it impossible to work with it. For example, see the screenshot, I was expecting to get all the Lists/Libraries. The same goes with Dynamics 365, storing environment URL. If variable can resolve these URLs, it will make development easier but more importantly deployment from one environment to another one (or Dev SharePoint site to Production Site) seamless, I would only need to change the variable. I understand from Microsoft support that it is currently not possible.