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

O5402 - Overview

• 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

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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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: