How To Fix FDT_EXPRESSIONS231 - Line &2: Parameter &1 is unknown or deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_EXPRESSIONS - Formula & Derivation Tool: Expressions

• Message number: 231

• Message text: Line &2: Parameter &1 is unknown or deleted

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 FDT_EXPRESSIONS231 - Line &2: Parameter &1 is unknown or deleted ?

  The SAP error message FDT_EXPRESSIONS231 typically indicates that there is an issue with a parameter in a formula or expression used in the context of SAP Fiori or SAP S/4HANA applications. The message states that a specific parameter (denoted as &1) is either unknown or has been deleted, which means that the system cannot find the parameter it is trying to reference.
  Cause:
  
  Parameter Deletion: The parameter that is being referenced in the expression may have been deleted or is no longer available in the context where it is being used.
  Incorrect Naming: The parameter name may be misspelled or incorrectly referenced in the expression.
  Context Issues: The parameter might not be available in the current context or scope where the expression is being evaluated.
  Changes in Data Model: If there have been changes in the underlying data model or structure, parameters that were previously valid may no longer exist.
  
  Solution:
  
  Check Parameter Existence: Verify that the parameter &1 exists in the relevant context. You can do this by checking the data model or the configuration where the expression is defined.
  Correct Naming: Ensure that the parameter name is spelled correctly and matches the expected naming conventions.
  Review Changes: If there have been recent changes to the data model or configuration, review those changes to see if they might have affected the parameter.
  Update Expressions: If the parameter has been deleted or changed, update the expressions to use the correct parameters or to remove references to deleted parameters.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific context in which the error occurs.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the parameter is being referenced and why it is not found.
  Community Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  
  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.