What is master data management (MDM)?

Master data management is the practice of creating and maintaining a consistent, governed view of all business entities across the systems that use them. It is no longer just an ERP topic—master data is the foundation for automation and agentic experiences across your enterprise. Within a business data fabric, master data management is where that context is built. Entity resolution identifies records that describe the same entity and brings them together into a golden record. Governance enforces policy and quality and relationships show how entities connect, producing unified data products in the knowledge core.

Why do AI agents need master data management?

AI agents act on your data with no human to catch errors first. An agent may resolve a customer dispute, reprice a product or evaluate a supplier. When the underlying records are duplicated, conflicting or stale, every application, analytic and AI agent built on it inherits the problem and acts on it. AI agents need the same accurate context your best people rely on. Master data management resolves data from every source into one view per entity, governs how that view is created and changed and carries the relationships between entities—so every agent works from the same current view.

What is data unification and doesn't my data warehouse or lakehouse do it?

Data unification turns duplicate, inconsistent business entities from many sources into one consistent and comprehensive view of each entity—matching and merging duplicates, cleansing and enriching values and capturing relationships and hierarchies. The result goes beyond a golden record. Each view carries the relationships and interactions that give the entity meaning. A data warehouse or lakehouse collects data—it does not resolve it. Nothing decides which records describe the same customer, product or supplier, so the duplicates, conflicting values and gaps come with the data.

What is the difference between SAP Reltio and SAP Master Data Governance?

SAP Reltio and SAP Master Data Governance are complementary. SAP Master Data Governance keeps master data correct at the point of creation in SAP ERP, enforcing policy and leaving a full audit trail. SAP Reltio unifies master data from other SAP applications, non-SAP systems and third-party data providers—resolving duplicates and maintaining quality across all of them. SAP has long provided trusted business data and context within SAP ERP. Together, these solutions extend that trusted foundation across all your SAP and non-SAP systems.

Why isn't mastering data in SAP ERP alone enough?

Mastering data in SAP ERP alone isn’t enough because the entities your business runs on exist in multiple places. For example, a customer exists in ERP, but also in CRM, marketing, commerce, service systems and often in third-party data. Governing master data at creation keeps ERP correct, but it can’t resolve the duplicates, conflicting values and missing relationships that appear once the same entity is represented across a dozen other systems. AI agents act on the whole entity—not just the ERP portion of it. Unifying data across sources gives them a comprehensive, current view rather than an authoritative fragment.

Master data management

Unify your SAP and non-SAP data into governed, trusted context in real time across AI, operational and analytical workloads.

Ground every decision and every AI agent, in one system of context

Group of people looking at master data management dashboard

Why master data management matters now

Real-time master data management resolves scattered entities from SAP and non-SAP systems into golden records that provide reliable context for employees and AI agents. Learn more during our webinar on 23 September, 2026.

Fuel AI agents with unified data products

Match and merge duplicate, inconsistent and incomplete records from SAP and non-SAP sources into AI-ready, reusable data assets that are continuously updated in real time.

Give your AI agents the true picture

Replace inconsistent customer, supplier, product and finance data with connected context to drive better decisions, automation and agentic AI experiences.

Accelerate time to value

Spend your time producing business outcomes—not building data infrastructure—while prebuilt industry models, workflows and connectors handle the groundwork.

Explore master data management capabilities

Governance, unification and quality management turn master data into a golden record for every entity, creating trusted, real-time data products.

Learn to build real-time, unified data products for agentic AI

Join our 23 September webinar to learn how trusted golden records power agentic AI and enable every team to work from the same trusted, always-current data.

See what analysts are saying about SAP

SAP is named a Leader in master data management

Find out why SAP and SAP Reltio were positioned as a Leader in The Forrester Wave™: Master Data Management Solutions, Q2 2025 report.

Read the report

Resources

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Frequently asked questions

: Master data management is the practice of creating and maintaining a consistent, governed view of all business entities across the systems that use them. It is no longer just an ERP topic—master data is the foundation for automation and agentic experiences across your enterprise.

Within a business data fabric, master data management is where that context is built. Entity resolution identifies records that describe the same entity and brings them together into a golden record. Governance enforces policy and quality and relationships show how entities connect, producing unified data products in the knowledge core.
: AI agents act on your data with no human to catch errors first. An agent may resolve a customer dispute, reprice a product or evaluate a supplier. When the underlying records are duplicated, conflicting or stale, every application, analytic and AI agent built on it inherits the problem and acts on it. AI agents need the same accurate context your best people rely on.

Master data management resolves data from every source into one view per entity, governs how that view is created and changed and carries the relationships between entities—so every agent works from the same current view.
: Data unification turns duplicate, inconsistent business entities from many sources into one consistent and comprehensive view of each entity—matching and merging duplicates, cleansing and enriching values and capturing relationships and hierarchies. The result goes beyond a golden record. Each view carries the relationships and interactions that give the entity meaning.

A data warehouse or lakehouse collects data—it does not resolve it. Nothing decides which records describe the same customer, product or supplier, so the duplicates, conflicting values and gaps come with the data.
: SAP Reltio and SAP Master Data Governance are complementary. SAP Master Data Governance keeps master data correct at the point of creation in SAP ERP, enforcing policy and leaving a full audit trail. SAP Reltio unifies master data from other SAP applications, non-SAP systems and third-party data providers—resolving duplicates and maintaining quality across all of them.

SAP has long provided trusted business data and context within SAP ERP. Together, these solutions extend that trusted foundation across all your SAP and non-SAP systems.
: Mastering data in SAP ERP alone isn’t enough because the entities your business runs on exist in multiple places. For example, a customer exists in ERP, but also in CRM, marketing, commerce, service systems and often in third-party data. Governing master data at creation keeps ERP correct, but it can’t resolve the duplicates, conflicting values and missing relationships that appear once the same entity is represented across a dozen other systems.

AI agents act on the whole entity—not just the ERP portion of it. Unifying data across sources gives them a comprehensive, current view rather than an authoritative fragment.