I have one application that is showing all of the requests are coming from Norway and we only do business in the US. Any ideas how to update / fix the geolocation information or where to look to determine why it's pulling Norway IPs?
I'm also interested in how the geolocations are automatically detected by Dynatrace - couldn't find it in the documentation. For one of our apps, all the users from Finland were suddenly detected as if they were coming from Sweden - which of course generated an alert, since all the Finnish users were "gone". I looked up one user IP as an example, and IP2Location correctly marked the country as Finland, but ipinfo.io reported it as Sweden. Also, the link Tommy provided worked in my case, marking the location for the IP as Finland. So it appears Dynatrace is using a service for this which isn't providing valid results for us at the moment.
You can do this in /#settings/rum/geographiclocations (Settings > Web & mobile > Map IP addresses to locations)
There is some documentation in that setting screen, find we use MaxMind GeoIP 2 and Geonames databases. View the setting screen, there you can check an IP against the records we hold and also you can set an IP in that view or import a CSV file.
Hope that answers it for you!