How To Fix EDOCUMENT120 - Dynpro number &1 already exists; choose another one

SAP Error Message - Details

• Message type: E = Error

• Message class: EDOCUMENT - eDocument: Messages

• Message number: 120

• Message text: Dynpro number &1 already exists; choose another one

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 EDOCUMENT120 - Dynpro number &1 already exists; choose another one ?

  The SAP error message EDOCUMENT120 indicates that there is an attempt to create or use a Dynpro (dynamic program) number that already exists in the system. This typically occurs when there is a conflict in the Dynpro number assignment, which is used to identify screens in SAP.
  Cause:
  
  Duplicate Dynpro Number: The most common cause of this error is that the Dynpro number you are trying to use is already assigned to another screen in the system.
  Custom Development: If you are working with custom screens or enhancements, it is possible that a developer has inadvertently reused a Dynpro number.
  Transport Issues: If you are transporting objects between systems (e.g., from development to production), there may be conflicts if the same Dynpro number exists in both systems.
  
  Solution:
  
  Choose a Different Dynpro Number: The simplest solution is to select a different Dynpro number that is not currently in use. You can check the existing Dynpro numbers in the system to find an available one.
  Check Existing Dynpro Numbers: Use transaction code SE80 (Object Navigator) or SE11 (Data Dictionary) to check for existing Dynpro numbers. You can also use transaction SE41 (Menu Painter) to see if the number is already assigned.
  Review Custom Code: If you are working with custom code, review the code to ensure that the Dynpro numbers are unique and not conflicting with standard SAP screens.
  Transport Management: If the issue arises during a transport, ensure that the transport does not contain conflicting Dynpro numbers. You may need to adjust the transport request or resolve conflicts in the target system.
  
  Related Information:
  
  Dynpro Numbers: Dynpro numbers are typically assigned in the range of 0-9999. It is advisable to use a range that is reserved for custom developments to avoid conflicts with standard SAP screens.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to Dynpro numbers or screen management.
  Documentation: Review SAP documentation on screen programming and Dynpro management for best practices in assigning and managing Dynpro numbers.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP Basis or development team for further assistance.