I Tried 9 Best Customer Data Platforms in 2026: What Works?

I identified Salesforce Data 360 (formerly Data Cloud), Insider One, Customer.io, Bloomreach, Tealium, Dotdigital, Klaviyo, Adobe Real-Time CDP, and Planhat as the best customer data platforms . What is the possible reason that your customer marketing isn't yielding any significant wins? I want to tell you that it's "data."