How To Fix 37042 - Specify both a field ID and a field name for the subkey


37042 - Overview

  • Message type: E = Error

  • Message class: 37 - Screen Painter

  • Message number: 042

  • Message text: Specify both a field ID and a field name for the subkey

  • Show details Hide details
  • What causes this issue?

    When maintaining matchcode sub-keys for a screen field, you failed to
    specify either the field ID or the field name of the matchcode sub-key.

    System Response

    To assign a matchcode sub-key to a screen field, you must specify both
    the field ID and also a field name. Therefore the system rejects your
    input.

    How to fix this error?

    With matchcode selections, matchcode sub-keys allow you not only to
    assign a selected value to the screen field where you make the
    matchcode entry, but also to fill other screen fields as a result of
    the selection.
    When you define a matchcode object in the ABAP/4 Dictionary, you can
    assign a field ID to a matchcode field. If a matchcode record is
    selected, the value of the field is attached to the field ID (as with
    GET/SET parameters).
    If there is a matchcode sub-key for this field ID, the system places
    the value attached to the field ID in the screen field whose field name
    is specified as the relevant sub-key field name.
    The functionality requires you to specify both a field ID and a sub-key
    field name for a matchcode sub-key.

    Error message extract from SAP system. Copyright SAP SE.


Smart SAP Assistant

  • What is the cause and solution for SAP error message 37042 - Specify both a field ID and a field name for the subkey ?
    The SAP error message 37042, "Specify both a field ID and a field name for the subkey," typically occurs in the context of customizing or configuring SAP applications, particularly when dealing with field definitions in the data dictionary or when creating custom fields in a table or structure.
    
    Cause: This error arises when a subkey is being defined without providing both the required field ID and field name. In SAP, when you are working with subkeys (often in the context of customizing data structures or tables), you need to specify both the identifier (field ID) and the actual name of the field. If either of these is missing or incorrectly specified, the system will throw this error.
    Solution: To resolve this error, follow these steps: Check Field Definitions: Go to the relevant transaction (like SE11 for Data Dictionary) and check the definitions of the fields you are working with. Ensure that both the field ID

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