Material Master

Lessons in this topic

• MM Material Master Part 1: Views, Material Types and Organizational LevelsThe material master is the central record for everything you buy, make, store and sell. Learn its views, how material types (ROH, HALB, FERT, HAWA, NLAG, DIEN) control views and valuation, which organizational level each view belongs to, and how to create and extend materials.
• MM Material Master Part 2: Purchasing and MRP Fields That Drive ProcurementThe fields that decide how procurement behaves: purchasing group, order unit, source list requirement, purchasing value key, GR processing time, planned delivery time, MRP type, lot size, procurement type, special procurement key, safety stock and plant-specific material status.
• MM Material Master Part 3: Material Type, Valuation Class and Accounting ControlHow the material master drives accounting: material type settings for quantity/value update, valuation class and account category reference, price control (standard S vs moving average V), material ledger in S/4HANA, and what happens when valuation class or price control is wrong.
• MM Material Master Part 4: How Material Master, Info Records and Source Lists Work TogetherProcurement data works as a chain: the material master defines what and when to buy, purchasing info records define supplier prices and delivery times, source lists and quota arrangements define allowed and preferred suppliers, and contracts define negotiated terms — together they drive automatic source determination and PO defaults.
• MM Material Master Part 5: S/4HANA Material Governance, Migration and Data QualityMaterial master in S/4HANA projects: product master and 40-character material numbers, material ledger, migration via the migration cockpit or conversion, cleansing and harmonization across legacy systems, governance with MDG, and keeping extension, status and classification data consistent.

Interview questions covered

• How does the classification system (class and characteristics) integrate with material type configuration to support material master governance in a multi-category enterprise?
• Users at a new storage location cannot see the quality management view fields when creating a material master record, even though other storage locations at the same plant show these fields. What is the likely cause and how would you troubleshoot it?
• What is the difference between internal and external number range assignment for material master records, and where is this controlled in configuration?
• Your client is migrating from ECC to S/4HANA Public Cloud with Ariba integration for indirect procurement. The material master no longer supports certain legacy fields used by their custom pricing logic. How would you approach reconciling material master simplifications with Ariba catalog and contract data?
• Purchase order creation is being blocked for a material at one plant with an error referencing plant-specific material status, while the same material transacts normally at other plants. How would you diagnose and resolve this?
• A business wants to introduce a new material type for 'non-stock service items' that should never carry inventory value but still needs purchasing master data (info records, source lists). How would you design this material type and what governance controls would you apply?
• Walk through how cross-plant and plant-specific material status settings support a material lifecycle governance process such as phasing out an obsolete material, and what functional restrictions each status type enforces.
• How does field selection control which material master fields are mandatory, optional, display-only or hidden, and what governs this at the material type and plant level?
• A global manufacturer needs different base units of measure conversion behavior for a material sold in each (base UoM) but purchased in kg and produced in liters, with a temperature-dependent density conversion. How should this be architected in the material master?
• A buyer creates a manufacturer part number (MPN) material to procure a component from an approved manufacturer, but the purchase order cannot display the manufacturer part field and instead processes against the internal material number only. What is the likely root cause and how do you resolve it?
• How are number ranges assigned to material types in configuration, and what are the implications of grouping multiple material types under a shared number range?
• What is the purpose of the classification system (class types, characteristics) in material master data, and how does it differ functionally from assigning a material group?
• A pharma company activates batch management on an existing material with open stock across multiple plants. What integration impacts occur across inventory, quality, and FI valuation?
• During a material master governance rollout, the business wants classification characteristics (e.g., a hazardous-material tag) to influence which account groups and downstream GL valuation classes can be assigned during material creation, distinct from standard material-type-driven field selection. As the functional lead, how would classification integrate with this governance model, and where does it fall short compared to account-group-based controls?
• During supplier master governance harmonization for a merger, two legacy systems used different material type strategies: one used a single generic material type for all purchased items, the other used granular material types per category. As architect, how do you decide the target material type strategy and what factors drive that decision?
• Post go-live, Ariba-sourced material master data fails intermittently to sync into S/4HANA via MDG, with some materials created with missing plant-level views. How would you troubleshoot this integration issue?
• A material's purchasing view was maintained correctly for Plant A but a buyer at Plant B cannot create a purchase order because the material's plant-level purchasing data is missing. What is the likely root cause and how do you resolve it?
• A global rollout uses one material master field selection group across all plants, but a regional business unit now requires the 'country of origin' field to be mandatory only for materials manufactured in their plants, while other regions want it optional. How would you resolve this without breaking the global template?
• What is the significance of the material type and how does it drive valuation level settings such as movement type restrictions and account determination?
• A procurement team complains that a newly created material cannot be used on a purchase order for a specific plant even though it exists in the material master. What material master view and organizational-level checks would you investigate first?

Related topics

Interview questions on this topic

• SAP MM / P2P Material Master interview questions
• SAP MM / P2P interview questions