--- title: 4 Types of Material Forecasting Models in SAP S/4HANA description: "Learn about the four types of material forecasting models in SAP S/4HANA: constant model, trend model, seasonal model, and seasonal trend model." image: https://blog.sap-press.com/hubfs/4%20Types%20of%20Material%20Forecasting%20Models%20in%20SAP%20S4HANA.png --- [![rheinwerk-sappress-logo-header-1](https://blog.sap-press.com/hubfs/rheinwerk-sappress-logo-header-1.svg)](https://blog.sap-press.com/) [Blog](https://blog.sap-press.com) - Books - Get an overview of our books and courses on every relevant SAP topic. - [Programming](https://sap-press.com/programming/) - [Administration](https://sap-press.com/administration/) - [BI](https://sap-press.com/business-intelligence/) - [Finance](https://sap-press.com/finance-controlling/) - [Logistics](https://sap-press.com/logistics/) - [HR](https://sap-press.com/human-resources/) - [CRM & Sales](https://sap-press.com/marketing-sales/) - [HANA](https://sap-press.com/hana/) - [Introductions](https://sap-press.com/introductions/) - [E-Bites](https://sap-press.com/e-bites/) - [Certification Guides](https://www.sap-press.com/certification-guides/) - [Rheinwerk Courses](https://www.sap-press.com/online-courses/) - Book Subscription - Get unlimited access to all SAP PRESS books! - [SAP PRESS Subscription](https://sap-press.com/subscriptions/) [Logistics](https://blog.sap-press.com/tag/logistics) # 4 Types of Material Forecasting Models in SAP S/4HANA ![SAP PRESS](https://blog.sap-press.com/hubfs/Twitter_profile_pic.svg) by [SAP PRESS](https://blog.sap-press.com/author/sap-press) Forecast modeling is designed to aid in forecasting particular events. The forecast model is designed around factors that are believed to be important influences on the future use of a material.   The past consumption of a material can also be used to determine its future use. Both of these methods should produce a reliable forecast. A number of forecast models are available in the forecasting functionality within [SAP S/4HANA](https://learning.sap-press.com/sap-s4hana), as shown in this figure. ![Available Forecast Models](https://blog.sap-press.com/hs-fs/hubfs/1995_15_001.png?width=1152&name=1995_15_001.png) In this post, we’ll discuss four forecast modeling types: the constant model, the trend model, the seasonal model, and the seasonal trend model.   ## Constant Model A constant model assumes that the use of a material is constant. Being constant doesn’t mean that the use of material is the same each month, but rather that variation in material usage fluctuates a little, and a constant mean value can be calculated. This forecast model can apply, for example, to electricity consumption in an office. Although summer months raise electricity consumption due to increased air conditioning use, consumption doesn’t vary a great deal from the mean value over a longer period of time, such as a year. ## Trend Model A trend model is used when an identifiable increase or decrease of material exists over a period of time. The trend may include areas of movement away from the trend, but the overall movement follows the trend. For example, a downward trend over time may represent the use of printer cartridges for top-selling printers that become obsolete over a short period of time, perhaps only 12 to 18 months. As the purchase and use of the printer becomes decreases, the cartridges used in that printer will also decrease. ## Seasonal Model The seasonal model affects many businesses due to the weather, holidays, or vacations. A seasonal model is defined as a pattern that repeats for each period. For example, the annual seasonal pattern has a cycle that is 12 periods long, if the periods are months. A seasonal model may be applicable to a company that makes patio furniture, which experiences greater demand from May through September, and this pattern is repeated each year. ## Seasonal Trend Model The seasonal trend model is similar to the seasonal model, except that, instead of the same pattern occurring each period, the pattern is moving further away from the mean value, either positive or negative. For example, California sparkling wine manufacturers can see a positive seasonal trend. Demand for their products follows a seasonal pattern, and for them, the seasonal pattern has a positive trend, as sales have continued to rise. A negative seasonal trend can be shown in beer manufacturers who have a seasonal market, but the overall trend continues to be negative as sales slow each year. ## How to Choose a Model If your company hasn’t developed forecast models in the past or doesn’t know which forecast model fits best, the SAP system can analyze your historical data and determine an appropriate forecast model to use. Forecast model J (automatic model selection) is available in SAP S/4HANA. After the model has been selected, this model can be selected as a starting point, and you can make modifications in the future. However, equally important is revisiting the system-proposed and selected forecast model regularly to ensure the forecast closely matches consumption trends.   *Editor’s note*: This post has been adapted from a section of the book [*Materials Management with SAP S/4HANA: Business Processes and Configuration*](https://www.sap-press.com/materials-management-with-sap-s4hana_5835/?utm_source=sappressblog&utm_medium=referral&utm_campaign=Blogs&utm_term=2538_chapter15&utm_content=2538)by Jawad Akhtar and Martin Murray. ## Recommendation [![Materials Management with SAP S/4HANA](https://blog.sap-press.com/hs-fs/hubfs/social-suggested-images/2538-1-1.jpg?width=170&name=2538-1-1.jpg)](https://www.sap-press.com/materials-management-with-sap-s4hana_5835/?utm_source=sappressblog&utm_medium=referral&utm_campaign=Blogs&utm_term=2538_chapter15&utm_content=2538) **Materials Management with SAP S/4HANA** Manage your materials with SAP S/4HANA! Whether your focus is on materials planning, procurement, or inventory, this guide will teach you to configure and manage MM in SAP S/4HANA. Start by creating your organizational structure and defining business partners and material master data. Then follow step-by-step instructions for your essential processes, from purchasing and MRP runs to goods issue and receipt. Discover how to get more out of SAP S/4HANA by using batch management, demand-driven MRP, SAP Fiori reports, and other built-in tools. [Learn More](https://www.sap-press.com/materials-management-with-sap-s4hana_5835/?utm_source=sappressblog&utm_medium=referral&utm_campaign=Blogs&utm_term=2538_chapter15&utm_content=2538) ![SAP PRESS](https://blog.sap-press.com/hubfs/Twitter_profile_pic.svg) **by [SAP PRESS](https://blog.sap-press.com/author/sap-press)** SAP PRESS is the world's leading SAP publisher, with books on ABAP, SAP S/4HANA, SAP IBP, intelligent technologies, SAP Business Technology Platform, and more! 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