How To Fix W8309 - Add a relational operator (<, >, =, etc.) to line &1

SAP Error Message - Details

• Message type: E = Error

• Message class: W8 - Workflow: Expressions, data flow

• Message number: 309

• Message text: Add a relational operator (<, >, =, etc.) to line &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W8309 - Add a relational operator (<, >, =, etc.) to line &1 ?

  Certainly! Here's detailed information about the SAP error message W8309:
  
  SAP Message W8309:
  Text:
  
  Add a relational operator (<, >, =, etc.) to line &1
  
  Cause:
  This warning message occurs when a condition or expression in a selection screen, query, or ABAP code is missing a relational operator. For example, if you write a condition or filter without specifying how the values should be compared (e.g., missing <, >, =, <=, >=, <>), the system cannot interpret the intended logic.
  Common scenarios include:
  
  In selection criteria or dynamic WHERE clauses, the condition is incomplete.
  In ABAP code, a logical expression is missing a comparison operator.
  In SAP Query or Infoset queries, a filter condition lacks a relational operator.
  
  
  Solution:
  
  Add the appropriate relational operator to the condition or expression at the specified line number (&1 indicates the line number in the source or selection screen).  
  Check the syntax of your selection criteria or WHERE clause and ensure that every condition includes a valid relational operator.
  For example, instead of writing:  
  WHERE field
  write:  
  WHERE field = 'value'
  
  In selection screens, ensure that the input fields are properly linked with operators.
  If the error occurs in a query or report, review the filter or selection conditions and correct them.
  
  
  Related Information:
  
  Message Class: W8 (related to selection screen or query conditions)
  This is a warning message, so the program might still run, but the logic will not behave as expected.
  Check the ABAP documentation on selection screens and logical expressions for proper syntax.
  In SAP Query or Infoset, always specify the operator when defining selection criteria.
  If you are dynamically building WHERE clauses in ABAP, ensure that the string includes the operator.
  
  
  Example:
  Incorrect:
  SELECT * FROM mara WHERE matnr.
  Correct:
  SELECT * FROM mara WHERE matnr = '12345'.
  
  If you provide the exact context or code snippet where the error occurs, I can help you pinpoint the exact fix.