The MER Trap: Why Your Best ROAS Days Might Be Killing Your Cash Flow
Key Takeaways The ROAS Illusion: High platform ROAS often masks "cannibalized" organic sales, leading to lower actual profit. MER vs. iROAS: Marketing Efficiency Ratio (MER) provides the macro view, while Incremental ROAS (iROAS) proves if your ads are actually driving new...