Which of the following bidding types would you choose to quickly get your app re-engagement campaign live and serving impressions?

Automatic bid is the best choice for quickly launching an app re-engagement campaign and serving impressions because it automates the bidding process. Twitter's algorithm optimizes your bid to achieve the most efficient results within your budget, ensuring your ads start serving immediately without manual adjustments. Maximum bid, conversely, requires you to set a specific maximum amount you're willing to pay per action. While this offers more control, it can delay impression delivery if your bid is too low or requires constant monitoring and adjustment, which contradicts the goal of quick launch. Therefore, not all options are equally suited; Automatic bid prioritizes speed and efficiency.