This partner insight was authored by Gregg Aldana, Senior Vice President and Head of Global Sales Solutions Consulting at Appian.

Most customers do not come to Appian because they want to replace SAP. They come to us because critical work extends beyond SAP — across email, spreadsheets, documents, field systems, contractors, and specialized applications. Appian provides a robust orchestration layer around SAP that coordinates this work end to end while allowing SAP to remain the trusted system of record. Customers gain a connected process spanning their people, data, systems, and automation without destabilizing or unnecessarily customizing their ERP core.

The objective is to make the entire operation visible, measurable, and easier to change. A useful way to decide where logic belongs is to ask: Is the logic essential to the integrity of the SAP transaction, or is it coordinating the broader business process around that transaction? Logic that protects transaction integrity should remain in SAP. Cross-functional orchestration, exception handling, collaboration, and differentiated business policies are strong candidates for Appian.

Where Utility Processes Break Down

This distinction is especially important for utilities, where critical work spans SAP, outage and asset management systems, crew-scheduling tools, field-service applications, document repositories, contractors, and — in some cases — paper-based processes. The greatest complexity often exists in the ​“middle stretch,” where ownership moves between departments, organizations, and technologies. That is where work frequently stalls, context gets lost, and exceptions become difficult to manage.

Additional friction occurs when an exception has no defined resolution path or when field evidence is incomplete. Appian connects that work as one end-to-end process, determining the next required action, assigning the responsible party, bringing forward the relevant information, and tracking when the work is due — even when the process spans paper, documents, SAP, and other systems.

Appian also separates participation in a process from ownership of the underlying data. That distinction is critical for utilities, where information about infrastructure, equipment, planned outages, and grid operations can be highly sensitive. A technician, contractor, or AI agent may need access to a specific task or piece of equipment without being given unrestricted access to the broader operational environment.

Appian’s data fabric provides layered object‑, record‑, and field-level security so each participant sees only the information required for their role. These controls can be applied consistently across applications, processes, reports, and authenticated AI interactions. This enables organizations to incorporate employees, contractors, partners, and AI agents into a process without granting them administrative access to every underlying system.

Appian’s process engine orchestrates the work, while our patented data fabric provides a governed view of the information required from SAP and other enterprise systems. APIs, connectors, events, business rules, and automation bring the relevant data and actions into one process experience. Users can see what they need, make decisions, and complete their work without having to understand the integration architecture operating behind the scenes. And because no data needs to be moved, implementation is fast and non-disruptive.

Real-World Use Case: Unifying Operations Across Systems

A pharmaceutical company faced a challenge familiar to utilities and other complex enterprises: a critical end-to-end process distributed across numerous specialized applications, teams, and data sources.

The company must conduct clinical trials safely, efficiently, and in accordance with rigorous regulatory requirements. Before Appian, approximately 40 different applications supported the planning, supply, forecasting, and execution of its clinical trials. Teams lacked a single view of demand for clinical supplies, available inventory, site readiness, timing, routing, and execution. As a result, employees spent a disproportionate amount of time chasing information across systems rather than managing the clinical supply process. Global adherence to the clinical supply plan was approximately 56%, contributing to study delays, missed participation windows, and waste involving expensive clinical supplies.

The pharmaceutical company implemented Appian as a business orchestration layer across all 40 applications. The underlying data remained in its source systems, where it continued to be governed and managed, while Appian provided a unified process and operational view across demand, inventory, site readiness, and patient availability. This allowed the company to connect the work without replacing the specialized systems supporting each part of the clinical supply chain.

Appian’s intelligent document processing capabilities extracted information from clinical and supply documents, reducing manual data entry and accelerating decisions. Robotic process automation automated high-volume, repetitive activities, including updates to mainframe and legacy systems. Together, these capabilities helped the company increase global adherence to the clinical supply plan from 56% to 76% within the first several months — a 20-percentage-point improvement — while reducing cycle time by 17% and issue rates by 15% in the first year.

The lesson extends well beyond life sciences: organizations do not need to replace every specialized system to transform an end-to-end operation. An orchestration layer can connect those systems, coordinate the work between them, and apply automation where it creates value. With the Appian Process HQ process intelligence tool, organizations can also identify bottlenecks, compare cycle times, monitor exception patterns, and use those insights to continuously improve how work moves across SAP and the surrounding systems.

Migrating to S/4HANA

Many ECC environments have accumulated custom extensions that support work extending far beyond the core ERP transaction. During an S/4HANA migration, organizations have an opportunity to determine which capabilities truly belong in the SAP core and which are more adaptable and better suited to a business orchestration layer like Appian. Strong candidates for Appian include approval chains, exception handling, document collection, contractor collaboration, cross-system routing, notifications, case management, specialized user experiences, and business policies that change frequently.

SAP should continue to own the controls and logic essential to ERP transaction integrity, including financial postings, inventory valuation, asset accounting, settlement, and core master-data governance. Appian is well suited to orchestrate the frequently changing work around those transactions. Moving that work into an orchestration layer can reduce custom ABAP code, support a cleaner core, and make cross-system processes easier to change, govern, and audit.

By decoupling the workforce experience and cross-system processes from the underlying ERP, Appian can support a more controlled, phased transition from ECC to S/4HANA — by business unit, geography, or business process, where appropriate. Migration teams can begin extracting unnecessary customizations and cross-system workflows before moving the ERP core. Employees retain a familiar process experience while IT changes the back end in deliberate phases, reducing disruption and avoiding the recreation of legacy designs in the new environment.

Do not wait for the entire S/4HANA migration to finish before making business improvements. Keep SAP as the trusted system of record while moving cross-system workflows, exceptions, collaboration, and differentiated user experiences into an orchestration layer that can evolve independently. This gives employees and contractors a better experience today, reduces the custom logic that must be carried into S/4HANA, and creates a cleaner, more sustainable, and lower-risk upgrade path. ERP modernization should not mean putting the business on hold.

Gregg Aldana is Senior Vice President and Head of Global Sales Solutions Consulting at Appian.