How To Fix FDT_WD_TOOLS393 - The precondition of the rule is false

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_WD_TOOLS - Message Class for tools

• Message number: 393

• Message text: The precondition of the rule is false

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_WD_TOOLS393 - The precondition of the rule is false ?

  The SAP error message FDT_WD_TOOLS393 with the description "The precondition of the rule is false" typically occurs in the context of SAP Fiori or SAP UI5 applications, particularly when working with the FDT (Form Data Tool) framework. This error indicates that a specific rule defined in the application has a precondition that is not met, which prevents the rule from being executed.
  Cause:
  
  
  Precondition Not Met: The rule has a precondition that evaluates to false. This could be due to:
  
  Missing or incorrect data in the fields that the precondition checks.
  Logical conditions in the precondition that are not satisfied based on the current state of the application.
  Changes in the data model that affect the precondition.
  
  
  
  Configuration Issues: There may be issues with how the rules and conditions are configured in the FDT framework.
  
  
  User Input: The user may have entered data that does not meet the criteria set by the precondition.
  
  
  Solution:
  
  
  Check Precondition Logic: Review the logic of the precondition associated with the rule. Ensure that the conditions are correctly defined and that they logically align with the expected data inputs.
  
  
  Validate Input Data: Ensure that all required fields are filled out correctly and that the data entered meets the criteria specified in the precondition.
  
  
  Debugging: Use debugging tools to trace the execution of the rule and identify why the precondition is evaluating to false. This may involve checking the values of the fields involved in the precondition.
  
  
  Review Configuration: If you have access to the FDT configuration, review the settings for the rules and preconditions to ensure they are set up correctly.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to properly configure rules and preconditions in the FDT framework.
  
  
  Seek Support: If the issue persists, consider reaching out to your SAP support team or consulting the SAP Community for assistance.
  
  
  Related Information:
  
  FDT (Form Data Tool): A framework used in SAP for managing forms and data entry processes.
  SAP Fiori/UI5: A user experience (UX) design approach that provides a consistent and intuitive interface across SAP applications.
  Debugging Tools: Familiarize yourself with SAP's debugging tools to analyze the execution flow and variable states.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.