SAP OMSA (6) – the building blocks for effective sourcing requests

André Dotzler

Henning Sanders


In the sixth part of our SAP OMSA series, we focus on plant master data and transportation aspects, two essential elements for generating a sourcing request from SAP OMSA.

Plant master data

In our previous articles, we discussed integrating plants into SAP OMSA. In S/4HANA, however, you can’t directly maintain the necessary parameters required by SAP OMSA. Instead, after the initial setup, you need to add the following information to the plants:

  • Capacity: Indicates how many orders a plant can process per day, impacting the sourcing strategy KPI (“Utilized Capacity”).
  • Picking cost: Represents the cost of picking items. It can be maintained per item, position, or order and is used by SAP OMSA in the sourcing strategy (KPI: “Picking and Packing Costs”). Lower picking costs often result in a higher sourcing priority for plants.
  • Transportation zone: Specifies the transportation zone where the plant is located, determining which customers the plant can supply.

Since these parameters can’t be maintained directly through S/4HANA, they must be added later using Postman or a custom app. However, since this data rarely changes, updating via Postman is usually sufficient.

Aspects of transportation

Transportation in SAP means addressing the logistics of shipping orders from plants to destinations, considering delivery time and cost. These aspects of transportation are defined by three parameters:

  • Transportation zone: Describes the “geographical zone”, which can range from country level to postal code level. Typically, one zone per country suffices unless there are significant transport differences within the country.
  • Transportation service codes: Define the shipping conditions offered.
  • Transportation lanes: These link the transportation zones with the transportation service codes and describe from and to which transportation zone deliveries can be made with a specific carrier. Additionally, the transportation lane includes the expected delivery time and shipping costs. This information plays a crucial role in the sourcing process.

Summary and looking ahead

Plant master data and transportation aspects can easily be overlooked as they are entered via Postman. However, they are crucially important and significantly impact the sourcing process. If these settings need changing frequently, it might be beneficial to manage them through a custom app. SAP has announced plans to make this information maintainable via a user interface. This means that, for now, we are refraining from using extensive custom implementations and are instead waiting for the SAP update. We will regularly review this and are able to offer a simple solution on the BTP, if needed.



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