How To Fix SY429 - Function not possible here

SY429 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 429

• Message text: Function not possible here

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SY429 - Function not possible here ?

  The SAP error message SY429 ("Function not possible here") typically occurs when a certain function or operation is attempted in a context where it is not allowed or applicable. This can happen in various scenarios, such as when trying to execute a function module, method, or operation that is not valid in the current program state or context.
  Causes of SY429 Error
  
  
  Invalid Context: The function you are trying to call is not valid in the current context. For example, you might be trying to call a dialog function in a background processing context.
  
  
  Incorrect Program Logic: The program logic may not be structured correctly, leading to an attempt to execute a function at an inappropriate time or place.
  
  
  Missing Authorization: Sometimes, the function may require specific authorizations that the user does not have, leading to the error.
  
  
  Incorrect Use of Function Modules: If a function module is called in a way that is not