ERP Source Configuration for SAP

  • Release version: Yokohama
  • Updated July 31, 2025
  • 2 minutes to read
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    Summary of ERP Source Configuration for SAP

    This guide explains how to configure your Source-to-Pay (S2P) instance to integrate with SAP ERP systems, enabling automatic posting and retrieval of purchase orders, receipts, invoices, and primary data. The configuration supports multiple ERP sources, each managed as distinct entries with dedicated integration services. It also allows customization of service-mapping logic to meet specific organizational needs.

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    Prerequisites

    • Assign Importtransformer and SOAP roles to the integration user.
    • Obtain ERP integration user credentials and SOAP or REST API details from your ERP team.
    • If integrating multiple ERP instances, configure each instance separately within S2P.

    Key Configuration Steps

    • Define the ERP source to integrate with SAP.
    • Create a basic authentication profile for web service integration with SAP.
    • Define the source configuration that links your ERP system to the ERP source entry in S2P.
    • Utilize preconfigured integration services covering essential SAP entities such as currencies, legal entities, FX rates, cost centers, departments, payment terms, purchasing organizations, GL accounts, plant addresses, suppliers, product models, invoices, units of measure, and product categories.
    • Set up subflows within the source configuration to lookup these entities from SAP.
    • Configure scheduled jobs to synchronize primary data updates from SAP at defined intervals, ensuring data accuracy for posting services; this includes configuring scheduled jobs for cost centers and other integration services.

    Practical Benefits

    By following this configuration, ServiceNow customers can achieve seamless integration between their S2P platform and SAP ERP systems, automating key procurement and financial data exchanges. This ensures up-to-date data synchronization, supports multiple ERP instances, and allows customization to align with specific ERP logic and workflows.

    Related Tasks

    • Define ERP source configuration for SAP
    • Configure integration services for SAP
    • Manually execute inbound flows or subflows in SAP

    Configure your Source-to-Pay (S2P) instance to support inbound and outbound integration with your ERP system. This integration configuration enables you to automatically post purchase order, receipt, invoice, and download primary data from the ERP.

    ERP source configuration enables the implementation of specific logic to populate values pertinent to third-party ERP systems. It includes all integration services defined between Source-to-Pay (S2P) and the third-party ERP system. In cases where multiple ERP sources exist, they’re stored as distinct ERP source entries with their corresponding integration services.

    To meet specific requirements, you can modify the service-mapping logic by updating the relevant service element map entry within the integration service record. For organizations using multiple ERP systems, an ERP Source field has been incorporated into the tables to ensure accurate identification of the respective integrated ERP system.

    Prerequisites

    Before you start the integration configuration, you must complete the following tasks.
    • Add the following roles to the Integration user:
      • Import_transformer
      • SOAP
    • Get the following details from the ERP team:
      • ERP integration user credentials.
      • SOAP or REST API details based on your ERP system and the type of web services you are using for the integration.
    Note:
    If the application needs to support multiple ERP instances, configure Source-to-Pay to integrate with each ERP instance separately.

    ERP Source Configuration

    To perform the ERP Source configuration for SAP, follow these steps:
    1. Define the ERP source that you want to integrate with SAP integration.
    2. Create a basic authentication profile that can be used for web service integration with SAP.
    3. Define source configuration for ERP source. The ERP source configuration determines the ERP source to which your ERP system connects. For more information, see Define ERP source configuration for SAP.
    4. The integration services are preconfigured with the base system for the following entities:
      • Currencies

        Set up subflows for the source configuration to lookup currencies from SAP.

      • Legal Entities

        Set up subflows for the source configuration to lookup legal entities or company code details from SAP.

      • FX Currency Rates

        Set up subflows for the source configuration to lookup FX rates from SAP.

      • Cost Centers

        Set up subflows for the source configuration to lookup cost centers from SAP.

      • Departments

        Set up subflows for the source configuration to lookup departments from SAP.

      • Payment Terms

        Set up subflows for the source configuration to lookup payment terms from SAP.

      • Purchasing Orgs

        Set up subflows for the source configuration to lookup purchasing orgs from SAP.

      • GL Accounts

        Set up subflows for the source configuration to lookup GL accounts from SAP.

      • Plant Addresses

        Set up subflows for the source configuration to lookup plant addresses from SAP.

      • Suppliers

        Set up subflows for the source configuration to lookup suppliers from SAP.

      • Product Models

        Set up subflows for the source configuration to lookup product models from SAP.

      • Invoices

        Set up subflows for the source configuration to lookup invoices from SAP.

      • Unit of Measure

        Set up subflows for the source configuration to lookup the base unit of measure details from SAP.

      • Product Categories

        Set up subflows for the source configuration to lookup material group details from SAP.

      Figure 1. ERP Source Configuration of S4 HANA
      ERP Source Configuration of S4 HANA
      Note:
      Similarly, you can select SAP ECC configuration to view the list of services.
    5. Configure a scheduled job to synchronize primary data updates from SAP.
    6. Set the time interval in the lookup Cost Center scheduled job to periodically synchronize primary data updates from the ERP, for posting services to work.
      Note:
      Similarly, you can configure schedule jobs for the other integrations services.

      You have configured the ERP source for SAP.