These are the 7 key performance indicators used in marketing: 1. Conversion rate - shows the percentage of potential customers that have become actual customers. 2. Customer acquisition cost - measures the cost of acquiring a new customer. 3. Customer lifetime value metric - shows the revenue generated by a customer throughout their lifetime. 4. Return on investment (ROI) - measures the profitability of marketing campaigns. 5. Customer satisfaction score - measures customer satisfaction and feedback. T 6. Website traffic KPI - measures the number of visitors on a website. 7. Social media engagement metric - measures the interaction between a brand and its audience on social media platforms.