Cant see Field Maps in Portal

[kapalczynski]

I inherited this setup... 
In out Non Production Portal I can see Field Maps as seen below.

BUT I do not see this in my Production Portal... Is there in install that needs to be done?

Non Production

Production -- NO FIELD MAPS

[kapalczynski · Accepted solution]

https://support.esri.com/en-us/knowledge-base/how-to-install-the-arcgis-field-maps-web-app-for-porta...