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# Elements of the flow - WDX3 Trigger

The `WDX3 Trigger` starts a flow when an Operation Service event is received from ISE Cobra. To be able to use the trigger, you must first establish a connection to the respective server under Admin ⇾ Connections. How to do this is described in the following [article](https://docs.groupalarm.com/en/article/connections-12sj3m4/).

1️⃣ You can name the triggers using the `Name` field. This can be particularly helpful if you are using multiple connections and therefore multiple flows with different triggers.

2️⃣ In the selection field for `Connection`, select the connection that you have previously created under Admin ⇾ Connections. The flow then automatically accesses the data that is transmitted to GroupAlarm as part of the selected connection.

3️⃣ Under `Service`, you can select the type of data you want to process. You can choose between Operations and Operational Resources.

4️⃣ You then use `Events` to specify which data is to be used for further processing in the flow. This data is available in subsequent elements.

![](https://storage.crisp.chat/users/helpdesk/website/91fefd8b4b0ac000/flowwdx3en_5v0ijo.png)