How To Fix O5402 - Customer-specific subscreens only possible for function code OIDX.

SAP Error Message - Details

• Message type: E = Error

• Message class: O5 - IS-Oil: MCOE message pool

• Message number: 402

• Message text: Customer-specific subscreens only possible for function code OIDX.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message O5402 - Customer-specific subscreens only possible for function code OIDX. ?

  The SAP error message O5402, which states "Customer-specific subscreens only possible for function code OIDX," typically occurs when there is an attempt to use a customer-specific subscreen in a context where it is not allowed or not properly configured. This error is often related to the use of custom screens or enhancements in SAP, particularly in the context of transaction codes or function modules.
  Cause:
  
  Function Code Misconfiguration: The error usually arises when a function code that is not set up to handle customer-specific subscreens is being used. The system expects a specific function code (OIDX) to allow for these customizations.
  Screen Configuration Issues: If the screen or subscreen is not properly configured in the SAP GUI or if the necessary enhancements are not implemented correctly, this error can occur.
  Missing Enhancements: If the necessary enhancements or modifications to support the custom subscreen are not present, the system will throw this error.
  
  Solution:
  
  Check Function Code: Ensure that the function code being used is OIDX. If you are using a different function code, you may need to change it to OIDX to allow for customer-specific subscreens.
  Review Screen Configuration: Go to the screen configuration in the SAP GUI and verify that the subscreen is correctly defined and linked to the main screen. Make sure that the subscreen is set up to be called with the correct function code.
  Implement Enhancements: If you are a developer or have access to development resources, check if the necessary enhancements or modifications are implemented in the system. You may need to create or adjust a customer exit or BAdI (Business Add-In) to support the custom subscreen.
  Consult Documentation: Review any relevant SAP documentation or notes related to the specific transaction or module you are working with. There may be specific guidelines or prerequisites for using customer-specific subscreens.
  Testing: After making the necessary changes, test the transaction again to ensure that the error is resolved.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with the transaction codes related to screen configuration and enhancements, such as SE80 (Object Navigator) and SE41 (Menu Painter).
  Development Tools: If you are a developer, tools like ABAP Workbench (SE80) can help you analyze and modify the screen and subscreen configurations.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or development team for further assistance.