Submitter here, with quick context. I was the sole designer of Microsoft's Enterprise Software Advisor (ESA) channel architecture between 1998 and 2001. The model converted Microsoft's enterprise licensing channel from a margin-based reseller structure to a direct-billing, advisory-fee structure. It launched as part of Licensing 6.0 in October 2001 and is still referenced by name in Microsoft's FY2025 10-K twenty-four years later.

The piece walks through what the original architecture was, why it worked (Microsoft's volume licensing commitments nearly tripled in the two years following launch, $1.9B to $5.5B), and why the 2026 unwind is structurally different. The 2001 transition gave partners a defined advisory role with a sustainable economic model. The 2026 transition does not.

Happy to take questions on the architecture, the design decisions, the pieces that worked and the pieces I'd do differently, or how this maps to adjacent industries. Insurance brokerage M&A is currently following a parallel consolidation pattern, which is interesting because insurance was one of the two industries I studied when designing the ESA model in 1998.

If any specific claim needs sourcing, flag it and I'll respond with primary-source citations.

Brendan