How To Fix VT001 - Source = A forbids specification of subsequent screen group and panel

SAP Error Message - Details

• Message type: E = Error

• Message class: VT - Vertriebstabellen

• Message number: 001

• Message text: Source = A forbids specification of subsequent screen group and panel

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message VT001 - Source = A forbids specification of subsequent screen group and panel ?

  The SAP error message VT001, which states "Source = A forbids specification of subsequent screen group and panel," typically occurs in the context of screen programming in SAP, particularly when dealing with screen groups and panels in the ABAP programming environment.
  Cause:
  This error usually arises when there is an attempt to define a subsequent screen group or panel in a context where it is not allowed. Specifically, the source "A" indicates that the current screen or program does not permit the specification of additional screen groups or panels. This can happen due to:
  
  Incorrect Screen Group Definition: The screen group may have been defined incorrectly or in a way that conflicts with the current screen's properties.
  Program Logic Issues: The logic in the ABAP program may be trying to navigate to a screen or panel that is not allowed based on the current context.
  Screen Attributes: The attributes of the screen being called may not support the addition of subsequent screen groups or panels.
  
  Solution:
  To resolve the VT001 error, you can take the following steps:
  
  
  Check Screen Group Definition: Review the definition of the screen group in the Screen Painter. Ensure that it is correctly defined and that it is appropriate for the context in which it is being used.
  
  
  Review Program Logic: Examine the ABAP code to ensure that the logic for screen navigation is correct. Make sure that you are not trying to call a subsequent screen or panel when it is not allowed.
  
  
  Modify Screen Attributes: If necessary, adjust the attributes of the current screen to allow for subsequent screen groups or panels. This may involve changing the screen type or properties in the Screen Painter.
  
  
  Debugging: Use the ABAP debugger to step through the code and identify the exact point where the error occurs. This can provide insights into what is causing the issue.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for more information on screen groups and panels, as well as any specific restrictions that may apply.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, there may be specific fixes or recommendations provided by SAP.
  ABAP Programming Guidelines: Familiarize yourself with best practices in ABAP programming, especially regarding screen handling and navigation.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify the cause of the VT001 error and implement a solution to resolve it.