How To Fix 28021 - Error: remaining part of expression cannot be interpreted

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 021

• Message text: Error: remaining part of expression cannot be interpreted

What causes this issue?

The syntax check could not interpret part of your entry.

System Response

The cursor shows the start of the expression that could not be
interpreted.

How to fix this error?

Check the separator characters in your entry. In a condition, ensure
that the individual parts of the condition are linked with logical
operators such as AND and OR. In actions, the individual parts of the
action must be separated from each other by a comma (',').
In constraints, if you enter several expressions in the sections
RESTRICTIONS: or CONDITION:, the individual expressions must be
separated by a comma.
You should also note that the only decimal point allowed in figures is
a period ('.').

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28021 - Error: remaining part of expression cannot be interpreted ?

  The SAP error message 28021, which states "remaining part of expression cannot be interpreted," typically occurs in the context of ABAP programming or when working with certain expressions in SAP transactions. This error indicates that the system is unable to parse or understand a part of the expression you are trying to execute or evaluate.
  Causes:
  
  Syntax Errors: There may be a syntax error in the ABAP code or expression. This could be due to missing operators, incorrect use of parentheses, or other syntactical issues.
  Data Type Mismatch: The expression may involve incompatible data types, leading to confusion in interpretation.
  Invalid Function Calls: If the expression includes function calls, the parameters passed may not match the expected types or number of parameters.
  Complex Expressions: Overly complex expressions that are difficult for the parser to interpret can also trigger this error.
  Missing Variables: If a variable used in the expression is not defined or is out of scope, it can lead to this error.
  
  Solutions:
  
  Check Syntax: Review the expression for any syntax errors. Ensure that all operators and parentheses are correctly placed.
  Data Types: Verify that all variables and constants used in the expression are of compatible data types. Use type conversion functions if necessary.
  Simplify Expressions: If the expression is complex, try breaking it down into simpler parts or intermediate variables to make it easier to read and understand.
  Debugging: Use the ABAP debugger to step through the code and identify where the error occurs. This can help pinpoint the problematic part of the expression.
  Review Function Calls: Ensure that any functions used in the expression are called with the correct parameters and that they return the expected data types.
  Check Variable Scope: Make sure that all variables used in the expression are properly defined and within scope.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for guidelines on writing expressions and understanding data types.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and how they resolved them.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  
  By following these steps, you should be able to identify and resolve the cause of the SAP error message 28021.