How To Fix BRF154 - Variable stack with processing of expression &1 is empty


BRF154 - Overview

  • Message type: E = Error

  • Message class: BRF - Messages for Business Rule Framework

  • Message number: 154

  • Message text: Variable stack with processing of expression &1 is empty

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  • Self-Explanatory Message

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    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.



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Smart SAP Assistant

  • What is the cause and solution for SAP error message BRF154 - Variable stack with processing of expression &1 is empty ?
    The SAP error message BRF154, which states "Variable stack with processing of expression &1 is empty," typically occurs in the context of Business Rule Framework (BRF+) when there is an issue with the evaluation of a rule or expression. This error indicates that the variable stack, which is used to hold the values of variables during the execution of a rule, is empty when it is expected to contain values.
    Causes:
    
    Missing Input Variables: The most common cause is that the input variables required for the expression are not being passed correctly or are missing entirely.
    Incorrect Rule Configuration: The rule or expression may be incorrectly configured, leading to a situation where it cannot retrieve or compute the necessary values.
    Data Type Mismatch: There may be a mismatch in the expected data types of the variables being processed, leading to an inability to evaluate the expression.
    Execution Context Issues: The context in which the rule

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