How does a merge work at an inclusive gateway (OR)?

At an inclusive gateway, process folders from multiple incoming sequence flows are joined with synchronization, that is, the gateway waits for other process folders with the same process number before any process folders are routed through the outgoing gates. As soon as process folders with a certain process number arrive via incoming sequence flows of an inclusive gateway with multiple incoming sequence flows, and no more process folders with the same process number can arrive, one process folder with the same process number is forwarded via each of the corresponding outgoing gates.