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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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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