How To Fix TD423 - & is invalid, OPEN_FORM is missing

TD423 - Overview

• Message type: E = Error

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

• Message number: 423

• Message text: & is invalid, OPEN_FORM is missing

What causes this issue?

The specified function has been called although an OPEN_FORM was not
executed beforehand.

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?

Please check the use of the SAPscript program interface in your
program. A print procedure must be initiated with OPEN_FORM before the
specified function can be executed.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TD423 - & is invalid, OPEN_FORM is missing ?

  The SAP error message TD423, which states "is invalid, OPEN_FORM is missing," typically occurs in the context of SAPscript or Smart Forms when there is an issue with the form processing. This error indicates that the system is trying to process a form that has not been properly initialized or opened.
  
  Cause:
  
  
  Missing OPEN_FORM Statement: The most common cause of this error is that the OPEN_FORM statement is missing in the ABAP program that is trying to call the SAPscript or Smart Form. The OPEN_FORM statement is necessary to initialize the form before any other form-related commands can be executed.
  
  
  Incorrect Form Name: If the form name specified in the program does not exist or is misspelled, it can lead to this error.
  
  
  Form Not Activated: If the form has not been activated after changes, it may not be recognized by the system.
  
  
  Incorrect Function Module: If the function module that is supposed to call