Stacked entitlements. One quote. The unified envelope is the misdirection.

The IPLA stack is what most mainframe buyers carry without realising it. Individual product licensing agreements signed years apart, against capacity metrics that have since changed, with MSU based pricing on some lines and capacity based pricing on others, and ESP mainframe scheduler entitlements layered on top of the whole structure. The current renewal quote tends to flatten the stack into one line and one number. The flattening is convenient for the seller. It is rarely the cheapest path to the same coverage.

The desk works the stack by separating it. Each IPLA carries its own discount logic and its own historical baseline. MSU based pricing on one product does not transfer cleanly to MSU based pricing on another. ESP mainframe scheduler entitlements sit alongside the IPLA lines but are priced on a different unit. When the renewal team rolls all of this together, the historical discount on each component becomes invisible. Pulling them apart and pricing each path independently changes the renewal envelope.

Sub capacity reconciliation is the second front, and it cuts across both IPLA and MSU. The capacity metric on the contract is rarely the capacity metric on the current deployment. The reconciliation between the two is where most of the audit exposure also lives. The desk does the reconciliation independently and presents it back to the seller, with a request to reprice on the actual deployment rather than the inherited contractual ceiling.

ESP mainframe scheduler is the third moving piece. The 2026 ESP renewal paper carries clause language that changes the entitlement scope. The clause is negotiable in window. The window closes at signature. The desk's standard sequence is to lift the ESP clause out of the unified renewal, negotiate it separately, and then return it to the structure on terms the buyer can model.