How To Fix D9748 - The logical key &1 cannot be changed subsequently


D9748 - Overview

  • Message type: E = Error

  • Message class: D9 - Environment Management System

  • Message number: 748

  • Message text: The logical key &1 cannot be changed subsequently

  • Show details Hide details
  • What causes this issue?

    You attempted to subsequently change the logical key &V1&. This change
    is not permitted for this object.

    System Response

    The SAP System rejects your processing.

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message D9748 - The logical key &1 cannot be changed subsequently ?
    The SAP error message D9748, which states "The logical key &1 cannot be changed subsequently," typically occurs when there is an attempt to modify a key field in a database table that is defined as a logical key. Logical keys are used to uniquely identify records in a table, and once they are set, they cannot be changed to maintain data integrity.
    
    Cause: Attempting to Change a Key Field: The most common cause of this error is an attempt to change a field that is part of the logical key of a database table after it has been created or populated with data. Data Integrity Rules: SAP enforces strict data integrity rules, and changing a logical key could lead to inconsistencies in the database. Custom Development: If there is custom development or enhancements that try to modify the logical key fields, this error may arise.
    Solution: Review the Code: Check the code or transaction that is

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