With AI enabling precise control over media spend, key performance indicators are changing. Brands now move beyond simple Return on Ad Spend (ROAS) to more sophisticated metrics like incremental ROAS and contribution margin, reflecting a new emphasis on profitable growth rather than just volume.

TV lacks a click, so last-click attribution models will severely undervalue its impact. A modern approach requires a holistic dashboard that triangulates performance across multiple metrics, including incremental CPA, view-through CPA, attributable Amazon purchases, and lift in retail sales.

Due to signal loss from cookie deprecation, no single model like MTA or MMM is sufficient. The new gold standard is using all available algorithms together in a machine learning framework, allowing them to influence each other for a more accurate ROI picture.

A modern data model revealed marketing influenced over 90% of closed-won revenue, a fact completely obscured by a last-touch attribution system that overwhelmingly credited sales AEs. This shows the 'credit battle' is often a symptom of broken measurement, not just misaligned teams.

The question modern attribution should answer is not "Which channel gets credit for this dollar?" but "What are the commonalities across our most successful buying journeys, and how can we replicate them?" This moves from a simplistic, linear view to a more holistic, pattern-based understanding of customer acquisition.

Go beyond standard W-shaped or last-touch attribution models. Create "influence reports" that measure the sheer frequency a channel appears in any revenue-generating journey. This provides a different lens, showing which channels are consistently present and influential, even if they don't get direct attribution credit.

Repositioning Marketing Mix Modeling (MMM) from a purely financial ROI calculation to a measure of consumer response and brand health can secure broader organizational buy-in, especially from brand-focused teams.

Instead of judging each marketing channel's Return on Ad Spend (ROAS) in isolation, contractors should measure overall ROAS. This approach accounts for the entire customer journey and exposes whether operational weaknesses, not just marketing, are hindering revenue generation from incoming leads.

Don't evaluate marketing channels in silos. A paid search lead isn't just from one click; it was enabled by 5-7 previous brand touchpoints from mass media, social, and other channels. The entire marketing strategy works as a closed loop, and its success must be measured holistically against overall business growth.