Final answer:
To choose between tCPA and Max Conversions bidding, consider your campaign goals, budget, and the conversion data available. tCPA is suited for specific CPA targets and established conversion history, while Max Conversions aims to maximize conversions regardless of budget constraints.
Step-by-step explanation:
To determine whether to use tCPA (target Cost Per Acquisition) or Max Conversions bidding, you should consider your campaign goals and budget constraints. If you have a specific CPA target and want to optimize for conversions within that cost structure, tCPA bidding might be more suitable. In contrast, if your primary goal is to drive as many conversions as possible and budget is not the main concern, then Max Conversions bidding could be the right choice. It's also important to consider historical data and the volume of conversions. tCPA requires some conversion data to perform effectively, so it's recommended for campaigns with an established conversion history. Max Conversions can be suitable for new campaigns or when trying to capitalize on high traffic volumes.