If you want to send messages from your chargers to more than one CPMS (Charge Point Management System), you need a Lab.
Create a Charger Profile for each CPMS and connect all of them to the same Lab.
Connect the "From Charger" Output of the "Exolink Connect - Input" component to all the CPMS Inputs of the "Exolink Connect - Output" component.
The CPMS Inputs can be identified by the tooltip which contains the ID of the CPMS. To find out the ID of a CPMS, view the ID column in the CPMS list (default hidden).
If you connect multiple CPMS, some governance is needed to avoid unexpected behavior.
Make sure that the chargers only ever receive one CALLRESULT by adding either a "Switch" or "Code" component between "From CPMS" and "To Charger". Implement your custom logic to decide which CPMS is allowed to send its answer to the chargers.
Example for a multi CPMS Lab Flow