Hi @CraigHarris1,
> I have an app within ArcGIS Enterprise (11.1) which is shared to our org. If I share / post this app within a Teams channel, could anyone within the company without an Enterprise license be able to see the map and associated pop-up data?
No. If you have an app inside your enterprise portal shared just to the organization, then an end user will need to be a member of the enterprise portal and require a login. You could assign them to the "viewer" role.
Alternatively, you could set the sharing properties of the app, web map, and data sources to "everyone" - then an end user would not require a login to access and view.
Please review this help topic: Best practices for sharing.
Hope this helps,
