How To Fix FDT_CORE840 - Message text for message &1 exceeds maximum length (255 characters)

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CORE - Formula & Derivation Tool: Core

• Message number: 840

• Message text: Message text for message &1 exceeds maximum length (255 characters)

What causes this issue?

For the current log message action, the system has detected that for the
message at position &v1&, the text length exceeds the maximum of 255
characters. This is not permitted.

System Response

The object cannot be saved.

How to fix this error?

Shorten the text of the message at position &v1&. You can accomplish
this by trying one or more of the following measures:
Use commonly used abbreviations.
Remove articles.
Reduce the message text to its core statement. Remove any phrases that
have been entered due to reasons of politeness or friendliness (for
example, "We are sorry the system could not ...", "Please understand
that identifiers must start with ...", etc.).

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 FDT_CORE840 - Message text for message &1 exceeds maximum length (255 characters) ?

  The SAP error message FDT_CORE840 indicates that a message text you are trying to process exceeds the maximum allowed length of 255 characters. This error typically occurs in the context of SAP Fiori or SAP UI5 applications, where message texts are often displayed to users.
  Cause:
  The primary cause of this error is that the message text being generated or processed is longer than the allowed limit of 255 characters. This can happen in various scenarios, such as:
  
  When a user inputs a long message in a form or field.
  When a system-generated message (like an error or warning) exceeds the character limit.
  When data from a backend system is being sent to the frontend and the message text is too long.
  
  Solution:
  To resolve this issue, you can consider the following approaches:
  
  
  Shorten the Message Text: If you have control over the message text, try to shorten it to fit within the 255-character limit. This may involve rephrasing or summarizing the content.
  
  
  Check Configuration: If the message is generated by a specific configuration or custom code, review the relevant settings or code to ensure that the message text is being generated correctly and does not exceed the limit.
  
  
  Use Message Handling: If you are developing an application, consider implementing message handling that truncates or summarizes longer messages before displaying them to the user.
  
  
  Review Data Sources: If the message text is coming from a backend system, check the data being sent to ensure it adheres to the character limit. You may need to adjust the data being sent or implement validation to prevent long messages.
  
  
  Consult Documentation: Review SAP documentation or community forums for any specific guidelines related to message handling in the context of your application.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Debugging: If you have access to the development environment, consider debugging the application to trace where the long message is being generated and address it at the source.
  
  By following these steps, you should be able to resolve the FDT_CORE840 error and ensure that message texts conform to the required length constraints.