How To Fix TD189 - Form class must correspond to a program class or remain initial

SAP Error Message - Details

• Message type: E = Error

• Message class: TD - SAPscript: Text editor, composer, forms, styles and fonts

• Message number: 189

• Message text: Form class must correspond to a program class or remain initial

What causes this issue?

If the form class field is used, the value of a program class must be
entered here. The value of the program class of the print program which
works with this form should be specified here.
A form class entry is used for classification and to facilitate the
search for forms of a particular application.

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?

Either leave the form class field blank or select the value of a
program class. You can display a list of all the available classes
using F4 (Possible entries).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TD189 - Form class must correspond to a program class or remain initial ?

  The SAP error message TD189, which states "Form class must correspond to a program class or remain initial," typically occurs in the context of SAPscript or Smart Forms when there is a mismatch between the form class and the program class in the configuration of a print form.
  Cause:
  
  Mismatch in Class Types: The form class defined in the SAPscript or Smart Form does not match the program class that is being used to call it. For example, if the form is defined as a "Smart Form" but the program is trying to call it as a "SAPscript," this error will occur.
  Incorrect Configuration: The configuration settings in the print program or the form itself may not be set correctly, leading to this inconsistency.
  Form Class Not Initialized: If the form class is not initialized or is left blank, it can also trigger this error.
  
  Solution:
  
  
  Check Form Class: Verify the form class defined in the Smart Form or SAPscript. Ensure that it matches the program class that is being used to call it.
  
  For Smart Forms, check the transaction SMARTFORMS.
  For SAPscript, check the transaction SE71.
  
  
  
  Adjust Program Class: If the program is calling the form incorrectly, adjust the program to match the form class. This may involve changing the way the form is invoked in the ABAP code.
  
  
  Initialization: If the form class is supposed to remain initial, ensure that it is correctly set to initial in the configuration.
  
  
  Review Print Program: Check the print program that is calling the form. Ensure that the correct form name and type are being used in the code.
  
  
  Testing: After making the necessary adjustments, test the print functionality again to ensure that the error is resolved.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SMARTFORMS for Smart Forms.
  SE71 for SAPscript forms.
  SE38 or SE80 for ABAP programs.
  
  
  
  Documentation: Refer to SAP Help documentation for Smart Forms and SAPscript for detailed information on form classes and their configurations.
  
  
  Debugging: If the issue persists, consider debugging the print program to trace how the form is being called and to identify any other potential issues.
  
  
  By following these steps, you should be able to resolve the TD189 error and ensure that your forms are correctly configured and called within your SAP environment.