How To Fix /BOFU/FDT_EXP_BO_RET151 - Expression &4 not found in binding for field &3 association &1/&2

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOFU/FDT_EXP_BO_RET -

• Message number: 151

• Message text: Expression &4 not found in binding for field &3 association &1/&2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /BOFU/FDT_EXP_BO_RET151 - Expression &4 not found in binding for field &3 association &1/&2 ?

  The SAP error message /BOFU/FDT_EXP_BO_RET151 indicates that there is an issue with a binding in a field of a Business Object (BO) in the context of SAP Fiori or SAP UI5 applications. Specifically, the error states that an expression (likely a data binding expression) is not found for a specified field association.
  Cause:
  
  Missing Expression: The expression defined for the field in the binding is not found. This could be due to a typo or an incorrect reference in the data model.
  Incorrect Association: The association specified in the binding might not exist or is incorrectly defined in the Business Object.
  Model Configuration: The data model might not be properly configured, leading to the inability to resolve the binding.
  Versioning Issues: If there have been recent changes to the data model or the Business Object, the application might not be updated to reflect those changes.
  
  Solution:
  
  Check the Binding Expression: Verify the binding expression used in the UI5 application. Ensure that it correctly references the field and that there are no typos.
  Validate Associations: Check the associations defined in the Business Object. Ensure that the association names and paths are correct and that they match the definitions in the data model.
  Review Data Model: Ensure that the data model is correctly defined and that all necessary fields and associations are included.
  Update Application: If there have been changes to the Business Object or data model, ensure that the application is updated and redeployed to reflect those changes.
  Debugging: Use debugging tools in SAP Web IDE or SAP Business Application Studio to trace the binding and identify where the failure occurs.
  Consult Documentation: Refer to SAP documentation for the specific version of the Business Object framework you are using to ensure compliance with best practices.
  
  Related Information:
  
  SAP Fiori Elements: If you are using Fiori Elements, ensure that the annotations in your metadata are correctly defined.
  SAP Community: Check the SAP Community forums for similar issues and solutions shared by other developers.
  SAP Notes: Look for any relevant SAP Notes that might address known issues with the specific version of the software you are using.
  
  By following these steps, you should be able to identify and resolve the issue causing the error message /BOFU/FDT_EXP_BO_RET151.