How do I create an audience so people who opened or received my first message do not get the second one I send?

Create an audience using the following Localytics events to target users based on prior message actions. We automatically capture these events for you:

• Localytics Push Opened

• Localytics In-App Displayed

You can then add targeting criteria for campaign name or action taken. For example:

• Users who did not perform event Localytics Push Opened

• Where attribute Campaign Name is one of "Campaign 1" or "Campaign 2"