How To Fix GB033 - Syntax error in validation prerequisite "&", step "&"

SAP Error Message - Details

• Message type: E = Error

• Message class: GB - Messages used by the Boolean code generator

• Message number: 033

• Message text: Syntax error in validation prerequisite "&", step "&"

What causes this issue?

A syntax error was found in validation &V1& during the ABAP code
generation. The error concerns the validation prerequisite.

System Response

An ABAP code is not generated for this Boolean statement and the
statement is evaluated as FALSE (in ABAP include &V3&).

How to fix this error?

Correct validation &V1& (step &V2&) using validation maintenance.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GB033 - Syntax error in validation prerequisite "&", step "&" ?

  The SAP error message GB033, which indicates a "Syntax error in validation prerequisite '&', step '&'", typically arises during the validation process in the SAP system. This error is related to the validation rules defined in the system, particularly in the context of financial accounting or controlling.
  Cause:
  
  
  Syntax Error: The error is primarily due to a syntax issue in the validation rules. This could be caused by:
  
  Incorrectly defined validation prerequisites.
  Missing or misplaced operators (like AND, OR).
  Incorrect use of field names or constants.
  Typographical errors in the validation logic.
  
  
  
  Invalid Field References: If the validation is referencing fields that do not exist or are incorrectly named, it can lead to this error.
  
  
  Logical Errors: Sometimes, the logic defined in the validation may not be coherent, leading to a syntax error.
  
  
  Solution:
  
  
  Check Validation Rules:
  
  Go to the transaction code OB28 (for validation) or OB29 (for substitutions) in SAP.
  Locate the specific validation rule that is causing the error.
  Review the syntax of the validation prerequisites and ensure that they are correctly defined.
  
  
  
  Correct Syntax:
  
  Ensure that all operators are correctly placed and that there are no missing or extra characters.
  Verify that all field names are correctly spelled and exist in the system.
  
  
  
  Test the Validation:
  
  After making corrections, test the validation to ensure that it works as expected without triggering the error.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidance on the correct syntax and structure for validation rules.
  
  
  
  Debugging:
  
  If the issue persists, consider using the debugging tools in SAP to trace the execution of the validation and identify where the syntax error occurs.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  OB28: For maintaining validation rules.
  OB29: For maintaining substitution rules.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or updates related to validation errors.
  
  
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  
  Training: If you are frequently encountering such issues, consider training on SAP validation and substitution rules to better understand how to define them correctly.
  
  
  By following these steps, you should be able to identify and resolve the syntax error associated with the GB033 message in SAP.