How To Fix ON109 - Redundancy indicators are displayed

SAP Error Message - Details

• Message type: E = Error

• Message class: ON - Tools in area Object Modeler / Object Editor

• Message number: 109

• Message text: Redundancy indicators are displayed

What causes this issue?

You have chosen Edit->Display on/off->Redundancy indicator. On this and
the following screens the object types will now be indicated which
appear repeatedly on the screen.
An object type appears repeatedly if it is part of several
relationships. If, for example, a class B inherits from a class A and
class A is associatively linked to a class C, then class A will appear
twice on the screen.

System Response

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

How to fix this error?

No action is required. This is just for your information.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ON109 - Redundancy indicators are displayed ?

  The SAP error message ON109, which states "Redundancy indicators are displayed," typically occurs in the context of the SAP system when dealing with master data, particularly in the area of material management or production planning. This message indicates that there are redundant indicators in the data that may lead to confusion or errors in processing.
  Cause:
  The redundancy indicators can arise due to several reasons:
  
  Duplicate Entries: There may be duplicate entries in the master data that are causing the system to flag redundancy.
  Configuration Issues: Incorrect configuration settings in the system can lead to the display of redundancy indicators.
  Data Migration Issues: If data has been migrated from another system, it may have brought in redundant or conflicting entries.
  Inconsistent Data: Inconsistencies in the data, such as overlapping validity periods or conflicting settings, can trigger this message.
  
  Solution:
  To resolve the ON109 error, you can take the following steps:
  
  
  Review Master Data: Check the relevant master data (e.g., material master, BOM, routing) for duplicate entries or conflicting information. Ensure that each entry is unique and correctly configured.
  
  
  Check Configuration Settings: Review the configuration settings in the SAP system to ensure that they are set up correctly and do not allow for redundancy.
  
  
  Data Cleanup: If duplicates are found, clean up the data by removing or merging redundant entries. This may involve working with data management tools or scripts to ensure data integrity.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling redundancy indicators in your version of SAP.
  
  
  Use Transaction Codes: Utilize relevant transaction codes (like MM02 for material master) to edit and correct the entries that are causing the redundancy.
  
  
  Seek Help from SAP Support: If the issue persists, consider reaching out to SAP support for assistance, especially if it involves complex configurations or data issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to master data management, such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material).
  SAP Notes: Check for any SAP Notes related to the ON109 error message, as they may provide specific fixes or patches.
  Training and Documentation: Ensure that users are trained on proper data entry and management practices to minimize the occurrence of redundancy in the future.
  
  By following these steps, you should be able to identify and resolve the cause of the ON109 error message in your SAP system.