In the Action section, click Add. 1. In the Extension drop-down list, select Mobile Core. 2. In the Action Type drop-down list, select Send Postback. 3. In the URL text field, type a sample URL, for example,
https://my.company.com/launch?ecid=. 4. Enter a name for the action. 5. Next to the Data Element text field, click the cylinder icon and select the ECID that was created in the previous section.