Hello @sebastian k.
I had gone through the documents but could not find a helpful in this situation except below comments in your shared post.
Also, if you set up IP ranges in Settings -> Web & mobile monitoring -> Map IP addresses to locations and your hosts fall into those IP ranges, it will also determine that location as a Datacenter. This is a manual way of defining your own Datacenter configuration in Dynatrace.
It means I will have to define the manual subnets.
Hello @Julius L.
I defined an IP address mapping rules where geographic coordinates were mandatory to show the data center. First of all this should be picked up automatically as a local data center and secondly if someone wants to import geographic regions then how the Geographic coordinates will be defined.
What is your opinion?
I'm not sure what do you mean by local data center. You just have to define Geo IP rules for internal (or external addresses). Your datacenters will be then named by the geolocation name. I only the city name and country will be used. So if you want to change the name of the datacenter you will probably have to rename the city name for the ip range.
(It takes some time for existing records - just did this yesterday).