You need to create new logistics areas in your system with use of the migration feature.
Although you don't receive any error message, the logistics areas are not imported to the system.
Reproducing the Issue
1.Go to Business Configuration work center.
2.Go to Overview view.
3.Search and Open the activity Migration of Location and Logistics Area.
4.Select the option to use the Migration Tool.
5.Select the migration file and execute the migration.
6.No error occurs, however when checking the system, no logistics area was migrated.
When executing migration of Locations and Logistics Areas, it is necessary to migrate both Locations and Logistics Areas at the same time, on one go.
In case you already have a Location in the system and is trying to add new Logistics Areas to it, the migration will fail. No error message will be triggered; however no data will be transferred to the system.
The system is working as designed.
See Also Case Document: 2408838 - How migration of Logistics Areas works
Migration, Logistic, Area, Tool, New , KBA , AP-LAS-LOA , Logistics Area , Problem