Create a UObject Manager

Create a new Blueprint Class

Search for OPObject, select OPObjectManager and create it.

Name the object manager as you want. Example : AC_MyObjectManager

Now you can open the object manager.

Now you're going to replicate your previous OPObject created. For that, you just need to call the ConstructRegisterReplicatedObject function on the server side only. The function will take the OPObject Class and return the constructed OPObject.

Here it is, your custom object is now replicated correctly.

Now you can get or set your replicated variables.

Now you can call your RPC's.

You can also stop replicating the object and mark them as garbage. This where the Event Destroy inside the O_MyReplicatedObject is call right bellow.

And there you go, it's as simple as that. If you have any questions, feel free to come to the Discord or write in the Question section on the Unreal Marketplace. Have a good day!