Amazon tells the UK CMA in a letter that Microsoft uses business practices that restrict customer choice in cloud computing, after a similar complaint by Google
Martin Coulter / Reuters :
Context & Ripple Effects
Amazon's submission adds the largest cloud provider to a regulatory process that began when Ofcom referred concerns about the UK cloud market to the CMA, including the position of AWS, Azure and Google. Ofcom's earlier referral put all three providers under scrutiny, even as this complaint focuses on Microsoft's conduct.
The letter follows Google's complaint over Microsoft's licensing practices, creating an unusual alignment between two infrastructure rivals around customer switching. Later CMA findings that Microsoft's licensing terms harmed competition show why the allegation became consequential. CMA findings on licensing terms
First-order effects
- The CMA receives corroborating complaints from both Amazon and Google, increasing the evidentiary and political weight behind examining Microsoft's cloud-related business practices.
- Microsoft faces more immediate regulatory pressure to justify how its commercial terms affect customers that use or consider rival cloud services.
Second-order effects
- Cloud buyers gain stronger support for challenging terms that make multi-cloud adoption or switching less attractive, while rivals can frame interoperability and portability as competitive differentiators.
- The dispute shifts competitive attention from infrastructure capacity alone to the commercial rules attached to enterprise software and cloud use, making licensing a central point of comparison.
Third-order effects
- If regulators consistently treat licensing-linked switching barriers as a cloud competition issue, hyperscalers may face more prescriptive oversight of the terms that connect software ecosystems to cloud consumption.
- The case points toward cloud competition being assessed as a systems market—software, hosting and customer mobility together—rather than as a simple comparison of compute services.
The trend: This is one data point in the shift toward regulating hyperscaler competition through the contractual and ecosystem mechanisms that shape customer mobility.