How To Fix /BOFU/FDT_EXP_BO_RET124 - Cannot use expression for node no. &1; parent node &2 is unusable

SAP Error Message - Details

• Message type: E = Error

• Message class: /BOFU/FDT_EXP_BO_RET -

• Message number: 124

• Message text: Cannot use expression for node no. &1; parent node &2 is unusable

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /BOFU/FDT_EXP_BO_RET124 - Cannot use expression for node no. &1; parent node &2 is unusable ?

  The SAP error message /BOFU/FDT_EXP_BO_RET124 indicates that there is an issue with the expression used in a Business Object (BO) in the context of SAP's Flexible Data Import (FDI) or similar data processing scenarios. The error message specifically states that the expression cannot be used for a certain node because its parent node is unusable.
  Cause:
  
  
  Unusable Parent Node: The parent node of the expression you are trying to use is in a state that does not allow it to be processed. This could be due to various reasons, such as:
  
  The parent node is not properly defined or configured.
  The parent node has validation errors or is missing required attributes.
  The parent node is not activated or is in a draft state.
  
  
  
  Expression Issues: The expression itself may have issues, such as:
  
  Syntax errors in the expression.
  References to non-existent fields or attributes.
  Incorrect data types being used in the expression.
  
  
  
  Solution:
  
  
  Check Parent Node: 
  
  Verify the configuration of the parent node. Ensure that it is correctly defined and activated.
  Check for any validation errors or warnings associated with the parent node.
  
  
  
  Review Expression:
  
  Inspect the expression for any syntax errors or incorrect references.
  Ensure that all fields and attributes referenced in the expression exist and are correctly typed.
  
  
  
  Activation: 
  
  If the parent node is in a draft state, activate it to make it usable.
  Ensure that all necessary components of the data model are activated.
  
  
  
  Testing: 
  
  After making the necessary changes, test the expression again to see if the error persists.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help resources for specific guidelines on configuring expressions and nodes in your version of SAP.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels for additional insights or similar experiences from other users.
  Version Specifics: Be aware that the behavior of expressions and nodes may vary between different versions of SAP, so ensure that you are consulting the correct version of the documentation.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.