How To Fix TPDA811 - The two variables are not compatible for a comparison (DIFF)

SAP Error Message - Details

• Message type: E = Error

• Message class: TPDA - Debugger

• Message number: 811

• Message text: The two variables are not compatible for a comparison (DIFF)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message TPDA811 - The two variables are not compatible for a comparison (DIFF) ?

  The SAP error message TPDA811 indicates that there is a type mismatch between two variables that are being compared in a program or a query. This typically occurs in ABAP (Advanced Business Application Programming) when you attempt to compare two variables of different data types or incompatible structures.
  
  Cause:
  
  Data Type Mismatch: The most common cause is that the two variables being compared are of different data types (e.g., comparing a character string with a numeric value).
  Incompatible Structures: If you are comparing two structures, they may not have the same fields or data types.
  Null or Uninitialized Variables: One of the variables may not be initialized or may contain a null value, leading to a comparison error.
  Implicit Type Conversion: Sometimes, implicit type conversion does not occur as expected, leading to a comparison error.
  
  
  Solution:
  
  Check Data Types: Verify the data types of the variables involved in the comparison. Ensure that both variables are of the