# Multiple CPMS

If you want to send messages from your chargers to more than one CPMS (Charge Point Management System), you need a Lab.

## Steps

### 1. Configure Charger Profiles

Create a Charger Profile for each CPMS and connect all of them to the same Lab.

![Add Lab to Charger Profile](https://images.exolink.com/docs/add-lab-to-profile.png)

### 2. Configure the Lab Flow

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).

#### 2.1. Important Governance

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.

![Multi CPMS Lab Flow](https://images.exolink.com/docs/multi-cpms-lab-flow.png)
*Example for a multi CPMS Lab Flow*