How To Fix CFD_REPOSITORY_HNDLR039 - Custom Field &1: Name &1 is not valid. It is already in use.

SAP Error Message - Details

• Message type: E = Error

• Message class: CFD_REPOSITORY_HNDLR - Custom Fields: Repository Handler

• Message number: 039

• Message text: Custom Field &1: Name &1 is not valid. It is already in use.

What causes this issue?

The value of property <ZK>CustomFieldID </>&V1& in entity set
<ZK>CustomFields </>is not unique. A custom field with the same name
already exists.

System Response

System revokes creation of custom field &V1&

How to fix this error?

Change the value of property <ZK>CustomFieldID </>in entity set
<ZK>CustomFields</>.

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 CFD_REPOSITORY_HNDLR039 - Custom Field &1: Name &1 is not valid. It is already in use. ?

  The SAP error message CFD_REPOSITORY_HNDLR039 indicates that there is an issue with a custom field you are trying to create or modify. Specifically, the error states that the name you are attempting to use for the custom field is already in use, which means that it conflicts with an existing field or object in the system.
  Cause:
  
  Duplicate Field Name: The most common cause of this error is that the name you are trying to assign to the custom field is already being used by another field or object in the SAP system.
  Namespace Conflicts: If you are working in a system with multiple developers or teams, it is possible that someone else has already created a field with the same name.
  Incorrect Naming Conventions: The name may not adhere to the naming conventions or restrictions set by SAP, which can lead to conflicts.
  
  Solution:
  
  
  Check Existing Fields: Before creating a new custom field, check the existing fields in the relevant data structure or table to ensure that the name you want to use is not already taken.
  
  You can do this by navigating to the relevant data dictionary (SE11) and searching for the field name.
  
  
  
  Choose a Unique Name: If the name is already in use, you will need to select a different, unique name for your custom field. Consider using a prefix or suffix that is specific to your project or team to avoid future conflicts.
  
  
  Review Naming Conventions: Ensure that the name you choose adheres to SAP's naming conventions. Custom fields typically start with a specific prefix (like Z or Y) to indicate that they are custom fields.
  
  
  Consult Documentation: If you are unsure about the naming conventions or the existing fields, consult the SAP documentation or your organization's development guidelines.
  
  
  Check Transport Requests: If you are working in a development environment, ensure that there are no pending transport requests that might have created the field in another environment.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or SE37 (Function Module) to explore existing fields and objects.
  Custom Fields and Logic: If you are working with custom fields in the context of SAP S/4HANA, you may also want to look into the Custom Fields and Logic app, which allows you to manage custom fields more effectively.
  SAP Notes: Check for any relevant SAP Notes that might address similar issues or provide additional guidance on custom field creation.
  
  By following these steps, you should be able to resolve the CFD_REPOSITORY_HNDLR039 error and successfully create or modify your custom field.