Which of the following should be set up to monitor campaign pacing?

Monitoring campaign pacing is essential for ensuring that a digital advertising campaign is progressing according to its planned schedule and budget. A budget tracker is specifically designed to monitor how the budget is being spent over time. It helps in assessing whether the campaign is on track to spend its allocated budget efficiently and within the designated time frame, allowing for timely adjustments if necessary.

By using a budget tracker, advertisers can determine if they are pacing too quickly or too slowly relative to the campaign objectives. This tool provides insights into daily, weekly, or monthly spend rates and can alert you when adjustments need to be made to avoid underspending or overspending.

Other options, such as conversion trackers, performance analysis, and engagement metrics, while important for measuring overall campaign success and effectiveness, do not specifically focus on tracking the pacing of budget expenditure, which is crucial for managing the financial aspects of a campaign. Hence, setting up a budget tracker is the most direct method for monitoring campaign pacing.