3 Signs Your SAP Landscape Has Become Too Complex
- October 6, 2026
In SAP landscapes, complexity typically accumulates. A business unit adds an application to address a specific need. An acquisition introduces another ERP instance. A customization solves an urgent process requirement. A point-to-point integration becomes permanent. Another cloud application enters the ecosystem…
Each decision may be perfectly reasonable on its own. Over time, however, organizations can find themselves supporting an SAP environment that is expensive to change and difficult to understand.
KEY TAKEAWAYS
- Complexity becomes a problem when change gets disproportionately difficult. If seemingly small business requirements require extensive impact analysis and coordination, underlying dependencies may be limiting agility.
- Customization can become technical debt. Custom code that once solved legitimate requirements may create unnecessary maintenance and modernization challenges years later.
- Integration sprawl is a warning sign. A growing web of point-to-point interfaces makes systems harder to change, monitor, secure, and retire.
- Knowledge concentration amplifies complexity. If only a few people understand how the landscape actually works, technology complexity becomes workforce risk.
Not all complexity is bad. Large global businesses legitimately require sophisticated technology environments. The question is whether SAP landscape complexity continues to serve the business, or whether the business is increasingly serving the complexity.
Here are three signs it may be time to reassess.
SIGN #1: “SIMPLE” CHANGES AREN’T SIMPLE ANYMORE
One of the clearest signs of excessive SAP landscape complexity is how difficult it becomes to make changes.
Imagine the business wants to modify a customer attribute, change a procurement workflow, add a new application, or update a reporting requirement. In a highly interconnected environment, the request can trigger a much larger investigation. Which systems use that data? Which interfaces will be affected? Does custom code depend on it? Will the change break a report? Does another business unit use the same configuration differently? The issue isn’t that impact analysis is necessary, but that teams increasingly struggle to confidently determine the impact.
Complexity Can Slow Transformation
A useful indicator is change effort relative to business value. If minor requirements routinely require large amounts of technical analysis, testing, coordination, and remediation, leaders should examine what is making those changes disproportionately difficult. The answer may be obsolete customizations, poorly documented dependencies, redundant applications, or integration complexity.
SIGN #2: CUSTOMIZATION HAS BECOME THE DEFAULT ANSWER
SAP environments frequently contain custom code for good reasons, like a standard process may not have supported an industry requirement or a regulatory requirement needed specialized logic. The problem arises when customization becomes the automatic response to any gap between SAP and historical ways of working. Over time, that can produce a landscape containing custom programs, enhancements, reports, interfaces, forms, workflows, and modifications that someone must continue maintaining.
Yesterday’s Requirement May Be Today’s Technical Debt
A customization can outlive the business requirement that created it. The original process may have changed. SAP may now provide standard functionality. The business unit requesting the development may no longer exist. Yet the custom code remains.
This is particularly relevant as organizations adopt SAP’s clean core approach. SAP describes clean core as a way of keeping the ERP environment up to date, documented, consistent, efficient, and cloud-compliant, while separating extensions where appropriate so organizations can continue adopting innovation.
Organizations must now justify whether the customization still creates enough business value to justify the complexity it introduces. If nobody can explain why it exists—but everyone is afraid to remove it—that’s a warning sign.
SIGN #3: NOBODY HAS A COMPLETE PICTURE OF THE LANDSCAPE
The third sign may be the most consequential.
Ask someone to draw the SAP landscape. Which SAP and non-SAP applications exist? What business capabilities does each support? Which systems exchange data? Who owns them? Which applications are redundant? Which integrations are business-critical?
If the answer requires tracking down multiple employees or reviewing old diagrams, the organization may have a visibility problem.
Integration Growth Makes the Challenge Harder
Organizations connect SAP with cloud applications, data platforms, warehouse systems, banks, suppliers, customer platforms, APIs, middleware, hyperscalers, and AI services. The more connected the environment becomes, the more important architecture visibility becomes. The problem is when the organization can’t confidently explain what they do, who owns them, whether they’re still necessary, or what will happen if something changes.
HOW SHOULD ORGANIZATIONS ADDRESS SAP LANDSCAPE COMPLEXITY?
The answer isn’t to launch a simplification initiative that attempts to remove anything that looks complicated. Some complexity is necessary. Instead, start by creating visibility.
Inventory applications, customizations, integrations, major data flows, and ownership. Identify redundant technology and technical debt. Understand which components create meaningful business value and which exist primarily because they’ve always existed. Then connect simplification to transformation priorities.
An SAP S/4HANA migration, cloud initiative, acquisition, AI program, or application modernization effort can provide a natural opportunity to ask whether existing complexity deserves to move into the future environment.
Use a Value vs. Complexity Test
For major components, ask two questions: “How much business value does this provide?” and “How much complexity does it create?”
High-value complexity may be worth maintaining, while low-value, high-complexity components deserve scrutiny. That framework helps prevent simplification from becoming a purely technical exercise.
FINAL THOUGHTS
Complexity that creates value can be an asset, but complexity that exists simply because nobody knows how to remove it is technical debt.
When simple changes consistently become major projects, customizations persist without clear value, or nobody can confidently describe how the environment fits together, those are signals worth paying attention to. That’s when SAP landscape complexity becomes a true barrier to transformation.