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How To Fix W-104 - supplier already assigned


SAP Error Message - Details

  • Message type: E = Error

  • Message class: W- -

  • Message number: 104

  • Message text: supplier already assigned

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  • Self-Explanatory Message

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    To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

    Unfortunately, there isn't any extra information in this error notice.



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Smart SAP Assistant

  • What is the cause and solution for SAP error message W-104 - supplier already assigned ?

    Certainly! Here's detailed information about the SAP error message W-104: Supplier already assigned:


    Error Message

    W-104: Supplier already assigned


    Cause

    This warning message typically occurs in SAP when you try to assign a supplier (vendor) to a purchasing info record, source list, or another master data object, but the supplier is already assigned to that object or a related one. Essentially, the system detects a duplicate assignment attempt.

    Common scenarios include:

    • Attempting to assign a vendor to a purchasing info record where the vendor is already assigned.
    • Trying to assign a vendor to a source list entry that already has that vendor assigned.
    • Duplicate vendor assignment in conditions or contracts.

    Explanation

    SAP enforces unique assignments to avoid data inconsistencies and redundancy. When you try to assign a supplier that is already linked, the system issues this warning to prevent duplicate entries.


    Solution / How to Resolve

    1. Check Existing Assignments:

      • Review the purchasing info record, source list, or master data object to confirm if the supplier is already assigned.
      • Use transaction codes like:
        • ME11 / ME12 / ME13 for purchasing info records.
        • ME01 / ME02 / ME03 for source lists.
        • Vendor master data via XK03 or MK03.
    2. Avoid Duplicate Assignment:

      • If the supplier is already assigned, no further action is needed unless you want to update or change the existing assignment.
      • If you intended to assign a different supplier, verify the supplier number and correct it.
    3. Delete or Modify Existing Assignment (if necessary):

      • If the existing assignment is incorrect or obsolete, consider deleting or modifying it before creating a new one.
    4. Check for Data Consistency:

      • Sometimes, inconsistencies or data corruption can cause this warning. Running data consistency checks or consulting with your SAP Basis/Support team may help.
    5. Ignore Warning (if appropriate):

      • Since this is a warning (W message), the system may allow you to proceed. However, proceed only if you are sure it won't cause data duplication.

    Related Information

    • Transaction Codes:

      • ME11: Create Purchasing Info Record
      • ME12: Change Purchasing Info Record
      • ME13: Display Purchasing Info Record
      • ME01: Create Source List
      • ME02: Change Source List
      • ME03: Display Source List
      • XK03 / MK03: Display Vendor Master Data
    • SAP Notes / Documentation:

      • Check SAP OSS Notes for any known issues related to W-104.
      • Review SAP Help Portal for purchasing info record and source list management.
    • Impact:

      • Prevents duplicate supplier assignments which can cause procurement process errors.
      • Helps maintain clean and consistent master data.

    If you provide the exact transaction or context where the error occurs, I can give more tailored advice.

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