The Incomplete Category Problem
Email and CEE Are Not Dead — They Are Unfinished
Dead categories are harvested. Unfinished categories are completed.
- Email is the world’s most durable digital marketing channel — owned identity, direct access, the highest ROI-per-dollar of almost any messaging medium, and a global installed base of three billion users. And yet most ESPs have converged on the same competition: deliverability rates, workflow builders, journey templates, and price. The channel survived. The category stalled. Every ESP promises broadly the same inbox landing rates, the same drag-and-drop designers, the same analytics dashboards. What once differentiated has been arbitraged away. Email became commodity rails — wide, reliable, and entirely undifferentiated.
- Customer Engagement and Experience platforms — CEE, also known in the industry as Marketing Automation Platforms or MAPs — followed a parallel trajectory. Over two decades of feature accumulation, CEE vendors built increasingly sophisticated platforms sold on a fundamentally unsophisticated economics: Monthly Transacting Users, messages triggered, journeys launched, API calls processed. The platform invoice rises with activity, regardless of whether customers stay, spend more, or quietly disappear. The software may be capable. The business model is not. Vendors succeed when brands plateau. That is not a commercial partnership — it is a structural misalignment dressed up as a subscription.
- Both categories are now red oceans: crowded, margin-compressed, and under accelerating pressure from AI-driven capability deflation. Across B2B software more broadly, the old SaaS expansion logic is breaking down. Seat-based growth is weakening as AI reduces the headcount that licences are tied to. Buyers are scrutinising renewals with a rigour they rarely applied during the growth years. The market is asking a harder question than before: do I want to use this product, or do I have to? The answer to that question determines whether a vendor commands pricing power or fights on price alone.
- Martech’s future lies in completing unfinished categories by changing both the product and the economics. The instinct is to treat current pressure as category maturity — inevitable decline, harvest-and-defend. That instinct is wrong. Email and CEE did not become crowded because they failed. They became crowded because they stopped evolving at the point of delivery and orchestration. Email became a sending system and stayed there. CEE became a workflow system and stayed there. Neither completed its economic destiny. Neither asked what it could become if the incentive structure changed.
- Atrium completes Email. Meridian completes CEE. They are not product launches or feature additions — they are category completions. And the next step is economic as much as technical: attention must fund email, and outcomes must fund engagement. Email without an attention engine remains a cost centre. CEE without an outcomes engine remains input-priced software. Both categories stopped halfway. Atrium and Meridian are the completion.
Key Takeaway: Email and CEE did not fail — they stopped evolving. Atrium and Meridian are the completion.
