How To Fix CM_EHFND_CTRL004 - Control name &1 in language &2 is not unique

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EHFND_CTRL -

• Message number: 004

• Message text: Control name &1 in language &2 is not unique

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_EHFND_CTRL004 - Control name &1 in language &2 is not unique ?

  The SAP error message CM_EHFND_CTRL004 indicates that there is a problem with the uniqueness of a control name in a specific language. This error typically arises in the context of SAP Fiori applications or when working with UI5 controls, where each control must have a unique identifier within a given context.
  Cause:
  The error occurs when:
  
  There are multiple controls with the same name in the same context (e.g., within the same view or component).
  The same control name is defined in different languages, leading to a conflict.
  The application is trying to register or instantiate a control that has already been defined with the same name in the specified language.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Control Definitions: Review the definitions of the controls in your application. Ensure that each control has a unique name within the same context. This includes checking for any duplicate entries in the XML views or JavaScript files.
  
  
  Language-Specific Names: If you are using language-specific control names, ensure that they are unique across all languages. You may need to modify the naming convention to include language identifiers or prefixes.
  
  
  Clear Cache: Sometimes, the issue may be related to cached data. Clear the cache of your browser or the SAP Fiori Launchpad to ensure that you are working with the latest version of your application.
  
  
  Debugging: Use debugging tools to trace where the control is being instantiated. This can help identify where the duplicate name is being introduced.
  
  
  Consult Documentation: Refer to the SAP documentation for guidelines on naming conventions and best practices for control definitions.
  
  
  Check for Updates: Ensure that your SAP system is up to date, as there may be patches or updates that address this issue.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  UI5 Documentation: Review the SAP UI5 documentation for best practices on control naming and management.
  
  By following these steps, you should be able to identify and resolve the issue causing the CM_EHFND_CTRL004 error in your SAP application.