How To Fix /PLMB/GOS007 - Wrong type was used for display key. Use either type character or string

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMB/GOS -

• Message number: 007

• Message text: Wrong type was used for display key. Use either type character or string

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMB/GOS007 - Wrong type was used for display key. Use either type character or string ?

  The SAP error message /PLMB/GOS007 Wrong type was used for display key. Use either type character or string typically occurs when there is a mismatch in the expected data type for a display key in the SAP system. This error is often related to the Generic Object Services (GOS) framework, which is used for handling attachments and other object-related services in SAP.
  Cause:
  
  Data Type Mismatch: The error indicates that the system expected a display key of type character or string, but received a different type (e.g., numeric or an unsupported format).
  Configuration Issues: There may be issues in the configuration of the GOS settings or the object type being used.
  Custom Development: If there are custom developments or enhancements in the GOS implementation, they might be incorrectly handling the display key.
  
  Solution:
  
  Check Data Types: Ensure that the display key being passed to the GOS function is of the correct type (character or string). You may need to review the code or configuration where the display key is being set.
  Review GOS Configuration: Check the configuration settings for the GOS in the SAP system. Ensure that the object types and their associated display keys are correctly defined.
  Debugging: If you have access to the ABAP code, you can debug the program to see where the incorrect data type is being assigned. Look for any custom code that might be manipulating the display key.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve known issues.
  Consult Documentation: Review the SAP documentation related to GOS and the specific object types you are working with to ensure compliance with expected data types.
  
  Related Information:
  
  SAP GOS Documentation: Familiarize yourself with the Generic Object Services documentation to understand how display keys are supposed to be configured and used.
  Transaction Codes: You may want to use transaction codes like SE80 (Object Navigator) or SE37 (Function Module) to explore the relevant function modules and their parameters.
  Community Forums: Consider checking SAP Community forums or other SAP-related discussion platforms for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP Basis or ABAP development team for further assistance.