How To Fix WER402 - Operator &1 is not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 402

• Message text: Operator &1 is not valid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WER402 - Operator &1 is not valid ?

  SAP Error Message:
  
  WER402 Operator &1 is not valid
  
  Cause:
  This error occurs when an invalid or unsupported operator is used in a selection condition, filter, or query within SAP. The placeholder &1 is replaced by the actual operator that caused the error. For example, if you use an operator that is not recognized by the system in a selection screen or in a dynamic WHERE clause, SAP will raise this error.
  Common scenarios include:
  
  Using an operator that is not defined in the context (e.g., in a selection screen parameter or dynamic WHERE clause).
  Typographical errors in the operator (e.g., using == instead of =).
  Using operators that are valid in some contexts but invalid in others.
  Using operators in custom ABAP code or queries that are not supported by the underlying database or SAP syntax.
  
  
  Solution:
  
  
  Check the Operator Used:
  
  Review the operator in the selection condition or filter that caused the error. Ensure it is a valid operator supported by SAP in that context. Common valid operators include:
  
  =, <>, >, <, >=, <=
  IN, NOT IN
  BETWEEN
  LIKE
  Logical operators like AND, OR, NOT (used correctly)
  
  
  
  Correct Typographical Errors:
  
  Make sure there are no typos or extra characters in the operator.
  
  
  Use Supported Operators in Selection Screens:
  
  If the error occurs in a selection screen, verify that the operator is one of the allowed ones for the parameter or select-option.
  
  
  Check Custom Code or Queries:
  
  If the error arises in custom ABAP code or dynamic WHERE clauses, verify the syntax and ensure the operator is valid for the database and SAP syntax.
  
  
  Consult SAP Documentation:
  
  Refer to SAP documentation or the ABAP keyword documentation for valid operators in the context you are working in.
  
  
  
  Related Information:
  
  Message Class: WER (related to selection conditions and filters)
  Where it occurs: Selection screens, dynamic WHERE clauses, filters in reports or queries.
  SAP Notes: Sometimes, specific SAP Notes address issues with operators in certain SAP modules or versions.
  Debugging Tip: Use the ABAP debugger or check the runtime error stack to identify exactly where the invalid operator is used.
  
  
  Example:
  If you have a selection condition like:
  SELECT * FROM mara WHERE matnr == '12345'.
  The operator == is invalid in SAP SQL; it should be:
  SELECT * FROM mara WHERE matnr = '12345'.
  
  If you provide the exact operator or context where the error occurs, I can help you with a more precise solution.