How To Fix WZ234 - Specify a dynpro number greater than zero

SAP Error Message - Details

• Message type: E = Error

• Message class: WZ - Workflow: Model objects

• Message number: 234

• Message text: Specify a dynpro number greater than zero

Self-Explanatory Message

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• What is the cause and solution for SAP error message WZ234 - Specify a dynpro number greater than zero ?

  SAP Error Message:
  WZ234 - Specify a dynpro number greater than zero
  
  
  Cause:
  This warning message occurs when a screen (dynpro) number is expected as input or parameter, but the value provided is zero or missing. In SAP, a dynpro number (screen number) must always be a positive integer greater than zero because zero is not a valid screen number.
  Typically, this error arises in custom ABAP programs, module pool programming, or when calling screens dynamically using statements like CALL SCREEN or SET SCREEN where the screen number variable is either not initialized or incorrectly set to zero.
  
  Explanation:
  
  Dynpro (Dynamic Program) refers to a screen in SAP.
  Screen numbers start from 1 upwards.
  Zero (0) is invalid as a screen number.
  The system expects a valid screen number to navigate or display the screen.
  
  
  
  Solution:
  
  
  Check the code where the screen number is assigned or passed:
  
  Ensure the variable holding the screen number is properly initialized.
  Make sure the screen number is