AI-driven personalization can lift customer satisfaction by 15–20%, boost revenue by 5–8%, and cut cost to serve by as much as 30%

Workflow & automation

Reader Note:: Not a finding of this article: it repeats figures from Unlocking the next frontier of personalized marketing, McKinsey Quarterly, January 2025 (footnote 7). No sample, company count or definition of how the lift was attributed is given in either piece as cited here.
Evidence:: Expert judgment
Vendor interest:: High — This comes from a company with a commercial interest in this market, so it is not a neutral source.
Sample:: Mixed source. The article combines several McKinsey surveys and case examples, including an AI Discovery Survey (August 2025, n=1,927), a McKinsey Global Survey on marketers (March 2026, n=521), and a McKinsey Global Survey on marketing executives (May 2026, n=26). Selection details are not disclosed in the article.

Good for

Hearing how someone who knows the field reads it, and deciding what to check yourself.

Anything that needs a measurement. Nobody counted or tested this.
This comes from a company with a commercial interest in this market, so it is not a neutral source.
The source never says how this number was measured.
The source says how much it looked at, but not how any of it was chosen.

10%

of organisations are realising significant ROI from agentic AI in Deloitte’s 2025 survey of 1,854 EMEA executives

24–56%

of marketing tasks are currently performed using AI or ML, rising to over half in three years according to US CMOs (2026 survey)

Our Substack turns the data behind these cards into full breakdowns: what changed, why, and what to do about it.

90% of CMOs are experimenting with AI but fewer than 10% have scaled it or realized value across marketing workflows

42.3%

of wrong AI answers were overridden with incentives and item-level feedback in Study 3 versus 20.0% in the control group

14%

average increase in sales productivity reported from using AI in marketing by US companies (2026 survey)

77% of brands say AI-assisted influencer campaigns perform better