How To Fix 28032 - Alphanumeric operator required

SAP Error Message - Details

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 032

• Message text: Alphanumeric operator required

What causes this issue?

The syntax check found an error. The system expects an alphanumeric
comparison operator at the cursor (such as '=' or '<>').

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check the expression at the cursor. You may need to correct the
operator or check the other messages to find the cause of the error.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28032 - Alphanumeric operator required ?

  The SAP error message 28032: Alphanumeric operator required typically occurs in ABAP programming when an operation is attempted on a data type that is not compatible with the expected alphanumeric (character) type. This error can arise in various scenarios, such as when performing string operations or comparisons.
  Cause:
  
  Data Type Mismatch: The error usually indicates that an operation is being performed on a non-alphanumeric data type (like numeric or date types) where an alphanumeric type is expected.
  Incorrect Use of Operators: Using operators that are not suitable for the data types involved in the operation can lead to this error.
  Implicit Type Conversion: Sometimes, implicit type conversions may not occur as expected, leading to this error.
  
  Solution:
  
  Check Data Types: Review the data types of the variables involved in the operation. Ensure that you are using alphanumeric types (like CHAR, STRING, etc.) where required.
  Explicit Conversion: If you need to perform operations between different data types, consider using explicit conversion functions (like CONCATENATE, CONVERT_TO_STRING, etc.) to convert non-alphanumeric types to alphanumeric types before performing the operation.
  Review Operators: Ensure that the operators you are using are appropriate for the data types. For example, if you are trying to concatenate strings, use the CONCATENATE statement instead of the + operator, which is not valid for strings.
  Debugging: Use debugging tools to step through the code and identify the exact line where the error occurs. This can help you pinpoint the data type causing the issue.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for detailed information on data types and operators.
  SAP Community: Engage with the SAP Community forums for discussions and solutions related to similar issues.
  Error Handling: Implement error handling in your ABAP code to gracefully manage unexpected data types and provide meaningful error messages.
  
  By following these steps, you should be able to resolve the error message 28032 and ensure that your ABAP code runs smoothly.