How To Fix CMS005 - An entry with the same key already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CMS - KPro: Content Management Service

• Message number: 005

• Message text: An entry with the same key already exists

What causes this issue?

When adding an entry, you specified a key that already exixts.

System Response

The entry cannot be added.

How to fix this error?

Specify a different key or remove the entry using <LB>cancel</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMS005 - An entry with the same key already exists ?

  The SAP error message CMS005 ("An entry with the same key already exists") typically occurs in the context of the SAP system when there is an attempt to create or update an entry in a database table or a configuration that already has an existing entry with the same key. This can happen in various modules, including SAP Customer Relationship Management (CRM), SAP Business Warehouse (BW), or other areas where data entries are managed.
  Causes:
  
  Duplicate Entries: The most common cause is that the system is trying to insert a new record that has a primary key or unique constraint that already exists in the database.
  Data Migration Issues: During data migration or data uploads, if the data being uploaded contains duplicates, this error can occur.
  Configuration Errors: In some cases, configuration settings may lead to attempts to create duplicate entries.
  Concurrent Processing: If multiple users or processes are trying to create the same entry simultaneously, it can lead to this error.
  
  Solutions:
  
  
  Check for Existing Entries: Before creating a new entry, check the database or the relevant table to see if an entry with the same key already exists. You can use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to look up the table.
  
  
  Modify the Key: If you are trying to create a new entry, consider modifying the key to ensure it is unique. This may involve changing a field value that is part of the key.
  
  
  Data Cleanup: If the error arises from data migration, ensure that the data being migrated does not contain duplicates. Clean up the source data before migration.
  
  
  Error Handling in Code: If you are developing custom code (e.g., ABAP programs), implement error handling to catch this specific error and handle it gracefully, perhaps by checking for existing entries before attempting to create new ones.
  
  
  Review Configuration: If the error is related to configuration settings, review the configuration to ensure that it does not inadvertently lead to duplicate entries.
  
  
  Consult Documentation: Check SAP Notes and documentation for any specific guidance related to the module you are working with, as there may be known issues or patches available.
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes that can help you analyze the data and configurations, such as SE11, SE16, and SE37 (for function modules).
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.