How To Fix IS159 - Material cannot be changed as a serial no. has been allocated


SAP Error Message - Details

  • Message type: E = Error

  • Message class: IS - Equipment management

  • Message number: 159

  • Message text: Material cannot be changed as a serial no. has been allocated

  • Show details Hide details
  • What causes this issue?

    You are trying to change the material in the equipment master
    record, although a serial number has been allocated to the piece of
    <GL:equipment>equipment</>.

    System Response

    INCLUDE 'KEINE-FUNKTION' OBJECT DOKU ID TX LANGUAGE E

    How to fix this error?

    The system issues an error message and will not allow you to continue with this transaction until the error is resolved.


    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message IS159 - Material cannot be changed as a serial no. has been allocated ?
    The SAP error message IS159 ("Material cannot be changed as a serial no. has been allocated") typically occurs when you attempt to make changes to a material that has already been assigned a serial number. This is a common scenario in inventory management and logistics where serial numbers are used to track individual items.
    
    Cause: Serial Number Assignment: The material in question has already been assigned a serial number, which means it is being tracked individually in the system. Material Master Data: Changes to certain fields in the material master data are restricted once a serial number is assigned to ensure data integrity and traceability. Transaction Type: The transaction you are trying to perform (e.g., changing material details, moving stock, etc.) is not allowed for materials with allocated serial numbers.
    Solution: Check Serial Number Assignment: Verify if the material indeed has a serial number assigned. You can do this by checking the serial number management in

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