How To Fix RU603 - User interface predefined, because there is no definition in Customizing

SAP Error Message - Details

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 603

• Message text: User interface predefined, because there is no definition in Customizing

What causes this issue?

A profile for single screen entry has not been defined as a standard
profile, neither has the current user been assigned a profile in the
CORUPROF parameter in the user defaults.

System Response

For single screen entry, the system uses a firmly defined interface.

How to fix this error?

If you do not want to use this firmly defined interface for entering
data, you have the following options:
Define a profile for single screen entry as a standard profile.
<DS:TRAN.OPK0>Execute function</>
Assign a profile for single screen entry to the CORUPROF parameter in
the user defaults for the current user.
<DS:TRAN.SU3>Execute function</>

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RU603 - User interface predefined, because there is no definition in Customizing ?

  The SAP error message RU603 indicates that there is a problem with the user interface configuration in the SAP system. Specifically, it means that the system is trying to access a predefined user interface that does not have a corresponding definition in the Customizing settings. This can occur in various scenarios, such as when a user tries to access a transaction or a report that relies on a specific user interface configuration that hasn't been set up correctly.
  Cause:
  
  Missing Customizing Entries: The most common cause is that the necessary entries for the user interface are missing in the Customizing settings. This could be due to incomplete configuration or changes that were not properly implemented.
  Transport Issues: If the configuration was transported from one system to another (e.g., from development to production), there may have been issues during the transport process that resulted in missing definitions.
  Version Mismatch: Sometimes, the error can occur if there is a mismatch between the version of the SAP system and the user interface definitions that are expected.
  
  Solution:
  
  
  Check Customizing Settings: 
  
  Go to the relevant Customizing transaction (usually SPRO) and navigate to the area where the user interface settings are defined. Ensure that all necessary entries are present and correctly configured.
  Look for the specific user interface definition that is causing the error and create or modify it as needed.
  
  
  
  Transport Requests: 
  
  If the issue arose after a transport, check the transport logs for any errors or warnings. Ensure that all necessary objects were included in the transport request.
  If needed, re-transport the missing configurations.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or notes related to the specific user interface you are working with. There may be specific instructions or prerequisites that need to be followed.
  
  
  
  Check User Authorizations: 
  
  Ensure that the user has the necessary authorizations to access the user interface. Sometimes, authorization issues can lead to similar error messages.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot find a solution, consider reaching out to SAP support for assistance. They may have additional insights or patches that can resolve the issue.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  Community Forums: Check SAP Community forums or other user groups where similar issues may have been discussed. Other users may have encountered the same problem and found solutions.
  Documentation: Review the SAP Help Portal for documentation related to the specific module or functionality you are working with, as it may provide insights into user interface configurations.
  
  By following these steps, you should be able to identify the cause of the RU603 error and implement a solution to resolve it.