How do you monitor marketing metrics while executing a campaign?

During the execution of a marketing campaign, I monitor marketing metrics by utilizing specialized analytics tools such as Google Analytics, Adobe Analytics, or HubSpot, which allow for real-time tracking and analysis of key performance indicators (KPIs) like click-through rates (CTR), conversion rates, engagement, return on investment (ROI), and customer acquisition costs (CAC), thereby providing actionable insights to optimize and assess the campaign's effectiveness.