How Lotte Rental Freed Innovation Budget Without Touching Core Systems
There is a recurring mistake that mature companies often make: they confuse the system with the system provider. They assume that updating, innovating, or digitally transforming their operations necessarily requires following the update pace dictated by their software manufacturer. Lotte Rental, the leading car rental company in South Korea, with over 40 years of experience and 300 operational branches, has just demonstrated the structural flaw in this logic.
On March 31, 2026, Rimini Street (NASDAQ: RMNI) announced the expansion of its alliance with Lotte Rental in a multi-year agreement covering support for its SAP and Oracle systems. What makes this move interesting is not the contract itself, but the sequence leading to it: Lotte Rental initially tested the model with a one-year pilot contract for Oracle in 2024, validated the results, and then extended that agreement by three additional years while simultaneously signing a new three-year contract for its SAP systems. This is not a purchasing decision; it is an architectural decision.
The Cost Nobody Audits in the IT Budget
Oracle and SAP structure their support contracts with annual fees that typically represent between 20% and 22% of the net value of the licenses. For a company as large and complex as Lotte Rental, which integrates leasing operations, car sharing, used car sales, and subsidiaries in Thailand and Vietnam, this budget line is non-trivial. Rimini Street operates with a straightforward value proposition: charging approximately half that fee for equivalent support, with a dedicated primary support engineer backed by a global team of ERP experts.
Lotte Rental reports savings over 50% on annual support fees. Translated into executive decision-making: this differential does not disappear into the balance sheet as an accounting improvement. It gets redirected. Changgeun Park, Lotte Rental’s IT head, stated bluntly: the company needed its core systems to be secure, flexible, and ready for innovation. The problem was not the software; it was the dependence model with the manufacturer that included constant pressure for costly and disruptive upgrades to maintain regulatory compliance.
This describes a classic architectural failure: the maintenance costs of infrastructure grow in proportion to the size of operations but do not generate incremental value. They are fixed costs that erode available cash for investment. When these costs are tied to a vendor with agenda power over the upgrade calendar, the company loses control over its own investment rhythm.
What is Gained When Switching Support Providers
Lotte Rental's movement is not merely an exercise in cost reduction. The most relevant mechanics lie in what that reduction enables. With the freed-up cost differential, the company launched three simultaneous lines of action: robotic process automation (RPA), enhancements to its SAP ERP interfaces, and integration of its marketing, logistics, finance, and human resources functions into a single platform. The projected result is a saving of more than 100,000 work hours over five years, directly impacting productivity and employee satisfaction.
This illustrates a mechanical principle that few organizations consistently apply: costs released in one part of the system can act as investment capital in another part, without needing external financing or board authorization to incur debt. Lotte Rental did not go to the capital markets to finance its digital transformation. It reconfigured the internal distribution of its IT budget.
What Rimini Street offers has a technical name in the industry: composable ERP strategy. Instead of replacing the core system, the company keeps its Oracle and SAP systems stable, extends their lifespan under third-party support, and builds modular layers of innovation on top, without discarding the historical investment in licenses and configuration. Kevin Kim, Rimini Street's vice president for Korea, summed it up accurately: stable core systems are a precondition, not the final destination. The destination is the AI initiatives, ESG mobility, and cloud capabilities that Lotte Rental can now finance with its own resources.
The Pilot Model as a Risk Filter
There is a detail in the sequence of the agreement that deserves specific attention. Lotte Rental did not sign a multi-year contract upfront. Instead, it signed a one-year contract, observed the provider's behavior under real operational conditions, and then made the expansion decision. This phased validation protocol is precisely what distinguishes an organization that deliberately manages risk from one that delegates decision-making to the vendor with the best PowerPoint presentation.
For Rimini Street, the implication is symmetric. Winning a client like Lotte Rental was not the result of a standard sales cycle; it was the result of demonstrating measurable results over twelve months under real operational pressure. The client had already made their decision before the multi-year contract was signed. This has a name in service contract economics: organic retention through proven performance, and it is the most efficient mechanism to build recurring revenue with low renewal costs.
The remaining risk is execution. Lotte Rental assumed that the promised savings would materialize within the projected timeframe and that the automation and integration initiatives would not encounter the organizational bottlenecks that have historically sabotaged such programs. If the RPA does not reduce work hours at the projected rate or if the platform integration faces internal resistance, the project math deteriorates. The core system is stable; peripheral execution remains the uncertainty factor.
One Piece Changed, Entire Machinery Reoriented
What Lotte Rental executed was not a digital transformation in the sense that consultants typically sell that term. It was something more precise and useful: it changed a single piece of its IT cost architecture — the support provider — and with that modification freed financial capacity to invest in automation, integration, and new capabilities without altering its operating core, without service interruptions, and without the risk of total system replacement.
This is the difference between a company that reacts to market pressure by breaking everything and rebuilding from scratch and one that accurately identifies which specific component is generating a structural leak. Lotte Rental did not have a software problem. It had a vendor dependency issue that consumed budget without generating competitive advantage. By isolating that component and replacing it with a more efficient one, it reconnected the flow of resources to where the operation needs them.
Companies do not collapse due to a lack of transformation ideas. They collapse because their models accumulate fixed costs that do not generate differentiated value, and when the moment arrives to invest in what truly matters, they do not have the cash to do so.
