How To Fix CFD_REPOSITORY_UTIL027 - Custom Field &1: Name &1 is not valid. Name must start with prefix &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: CFD_REPOSITORY_UTIL - Custom Fields: Repository

• Message number: 027

• Message text: Custom Field &1: Name &1 is not valid. Name must start with prefix &2.

What causes this issue?

Value of property <ZK>CustomFieldID</> &V1& in entity set
<ZK>CustomFields </>is invalid. The Custom Field ID must begin with
prefix &V2&.

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 </>and dependent entity sets to a valid value.

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_UTIL027 - Custom Field &1: Name &1 is not valid. Name must start with prefix &2. ?

  The SAP error message CFD_REPOSITORY_UTIL027 indicates that there is an issue with the naming convention of a custom field in the SAP system. Specifically, the error states that the name of the custom field does not start with the required prefix.
  Cause:
  
  Invalid Naming Convention: In SAP, custom fields must adhere to specific naming conventions, which often include a required prefix. This is to ensure that custom fields do not conflict with standard SAP fields and to maintain consistency across the system.
  Prefix Requirement: The error message specifies that the name of the custom field must start with a certain prefix (denoted as &2 in the error message). If the custom field name (denoted as &1) does not start with this prefix, the system will throw this error.
  
  Solution:
  
  
  Rename the Custom Field: To resolve this error, you need to rename the custom field so that it starts with the required prefix. 
  
  Identify the correct prefix that is required (this will be indicated in the error message as &2).
  Modify the name of the custom field to include this prefix at the beginning.
  
  
  
  Check Naming Conventions: Review the naming conventions for custom fields in your specific SAP environment. This information can usually be found in the SAP documentation or by consulting with your SAP administrator.
  
  
  Recreate the Custom Field: If renaming is not feasible (for example, if the field is already in use), you may need to create a new custom field with the correct naming convention and migrate any necessary data from the old field to the new one.
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for guidelines on creating custom fields and the required naming conventions.
  SAP Community: Engage with the SAP Community forums for additional insights and experiences from other users who may have encountered similar issues.
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions related to custom field creation and naming conventions.
  
  By following these steps, you should be able to resolve the CFD_REPOSITORY_UTIL027 error and successfully create or modify your custom field in SAP.