How To Fix SWF_EXP_001504 - Operator '&1': invalid data type for expression '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_EXP_001 - Expression Service Messages

• Message number: 504

• Message text: Operator '&1': invalid data type for expression '&2'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_EXP_001504 - Operator '&1': invalid data type for expression '&2' ?

  The SAP error message SWF_EXP_001504 indicates that there is an issue with the data type of an operator in an expression within a workflow. Specifically, the message states that the operator &1 is being used with an invalid data type for the expression &2. This typically occurs in the context of workflow definitions or expressions where the expected data type does not match the actual data type being used.
  
  Cause:
  
  Data Type Mismatch: The most common cause of this error is that the operator being used expects a certain data type (e.g., integer, string, boolean), but the actual data type of the operand does not match this expectation.
  Incorrect Workflow Configuration: The workflow might be incorrectly configured, leading to the use of incompatible data types in expressions.
  Changes in Data Structure: If there have been changes in the underlying data structure or data types (e.g., changes in the database or data model), this can