Heads up Messages to Increase Call Pick-up Rates

The study aims to investigate whether notifying health insurance members about an upcoming call can increase their pick-up rates. The study will randomize participants into three groups: control group (no message), treatment group 1 (message variation 1), and treatment group 2 (message variation 2). The primary outcome of interest is the call pick-up rate, and the study will also examine the message opt-out rates for the two different messages.