Active build configuration
Last updated: May 29, 2026
Allocations drive Multiplay Hosting fleets by propagating configuration changes to servers as they're necessary to fulfill player demand. One such configuration is the active build configuration.
A matchmaker controls servers' active build configuration in a typical production environment by requesting servers to meet player needs. But it's also possible to manually allocate a server with a build configuration.
The simplest ways to change the active build configuration of a server are to:
Use the Allocations API to allocate the server with the build configuration you want to run.
Create a test allocation with the build configuration.