How To Fix FDT_EXPRESSIONS149 - It is only possible to define one action column

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 149

• Message text: It is only possible to define one action column

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_EXPRESSIONS149 - It is only possible to define one action column ?

  The SAP error message FDT_EXPRESSIONS149 indicates that there is an issue with the configuration of action columns in a specific context, typically within the context of SAP Fiori or SAP UI5 applications. This error occurs when you attempt to define more than one action column in a table or a similar structure where only one action column is permitted.
  Cause:
  The primary cause of this error is the attempt to define multiple action columns in a table or data structure where the system only allows one. Action columns are typically used for operations like edit, delete, or other actions that can be performed on the data rows.
  Solution:
  To resolve this error, you need to ensure that only one action column is defined in the relevant configuration. Here are the steps you can take:
  
  
  Review the Configuration: Check the configuration of the table or data structure where the error is occurring. Look for the definition of action columns.
  
  
  Remove Extra Action Columns: If you find that there are multiple action columns defined, remove the additional ones so that only one remains.
  
  
  Test the Changes: After making the necessary adjustments, test the application or report again to ensure that the error no longer occurs.
  
  
  Consult Documentation: If you are unsure about how to configure the action columns correctly, refer to the SAP documentation or help resources related to the specific module or application you are working with.
  
  
  Seek Help from SAP Community: If the issue persists or if you need further clarification, consider reaching out to the SAP Community or forums for additional support.
  
  
  Related Information:
  
  SAP Fiori Elements: If you are working with SAP Fiori applications, familiarize yourself with the guidelines for defining tables and action columns in Fiori Elements.
  SAP UI5 Documentation: Review the SAP UI5 documentation for best practices on defining tables and handling actions within them.
  Debugging Tools: Use debugging tools available in the SAP environment to trace where the error is being triggered and to understand the context better.
  
  By following these steps, you should be able to resolve the FDT_EXPRESSIONS149 error and ensure that your application functions as intended.