During the last years I have waited for the ability to open a specific webmap and show a specific feature. It is easy to open a webmap and use a search criteria -but you could not search on ID.
Why doesn´t Esri want us to have this ablitity? It would drastically open up for new ways to use AGOL and Portal.
Have you added your idea to Esri Ideas page?
Thanks for the Link, I will do it immediately.
You can open a web map to a specific feature using many of the configurable app templates. To get this functionality I configured the Minimalist app to have a custom url parameter setup to search the FID fiedl in the WildlifeClosures layer.
Then I add the id param to the end of the url and specify the id to search. We do this by adding &id=32 to then end of the app url.
http://www.arcgis.com/apps/Minimalist/index.html?appid=e62450e581f64b3b9f5ac10ca4aab7ab&id=32
More details on creating a configurable app can be found here: Configurable Apps