How To Fix MN449 - Selection dynpro & not defined (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 449

• Message text: Selection dynpro & not defined (internal error)

What causes this issue?

Dynpro &V1& should have been called for the selection of
<GL:arrangement>rebate arrangements</>. However, the dynpro does not
exist.

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?

Function module 'MM_ARRANG_SELECT_ARRANGEMENTS' was called with an
invalid parameter (internal error).
Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MN449 - Selection dynpro & not defined (internal error) ?

  The SAP error message MN449 "Selection dynpro & not defined (internal error)" typically occurs when there is an issue with the selection screen (dynpro) that is expected to be displayed for a particular transaction or report. This error indicates that the system is unable to find the appropriate selection screen for the program or transaction you are trying to execute.
  Causes:
  
  Missing or Incorrect Dynpro Definition: The selection screen (dynpro) for the program may not be defined correctly in the ABAP code or may be missing entirely.
  Program or Transaction Issues: The program or transaction you are trying to run may have been modified or not properly activated.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the selection screen.
  Transport Issues: If the program was transported from one system to another, the selection screen might not have been included in the transport request.
  Custom Development: If the program is a custom development, there may be issues in the code that prevent the selection screen from being displayed.
  
  Solutions:
  
  Check Program Code: Review the ABAP code for the program to ensure that the selection screen is defined correctly. Look for the SELECT-OPTIONS or PARAMETERS statements that define the selection criteria.
  Activate the Program: If the program has been modified, ensure that it is activated in the ABAP Workbench (SE80 or SE38).
  Check Transaction Codes: Verify that the transaction code associated with the program is correctly defined in the transaction code table (SE93).
  Authorization Check: Ensure that the user has the necessary authorizations to execute the program and access the selection screen.
  Transport Request: If the program was transported, check the transport request to ensure that all necessary objects, including the selection screen, were included.
  Debugging: If you have access to the ABAP debugger, you can set breakpoints in the program to see where it fails to find the selection screen.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE38 (ABAP Editor) to check the program and its associated selection screen.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Check SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, it may be necessary to consult with your SAP Basis or ABAP development team for further investigation.