If someone is connected to a specific Portal using the field app, there should be an option to add a custom popup or banner with information/links.
Basically, I want my users to have a "how to" help resource readily available. But also being able to notify users of upcoming maintenance or similar would be nice.
An example of a banner set in Portal:
![abureaux_0-1718637044980.png abureaux_0-1718637044980.png](https://community.esri.com/t5/image/serverpage/image-id/107184i266E5F41C5591391/image-size/medium?v=v2&px=400)
An example of a popup in WAB:
![abureaux_1-1718637145349.png abureaux_1-1718637145349.png](https://community.esri.com/t5/image/serverpage/image-id/107185iFEC028CFC9A51EEB/image-size/medium?v=v2&px=400)