You can use an Or-Join gateway
to connect multiple predecessor worksteps to one successor workstep. The successor workstep is performed only when any one of the predecessor worksteps are completed. The most common use of an Or-Join gateway is with a loop back or to connect to an End workstep. Alternatively, you can get the equivalent of an Or-Join by adding multiple incoming connectors to an Activity workstep, and this workstep will be activated when any of its predecessor worksteps are completed.
