How To Fix CD020 - Function module & already exists (delete the module)

SAP Error Message - Details

• Message type: E = Error

• Message class: CD - Change Documents

• Message number: 020

• Message text: Function module & already exists (delete the module)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CD020 - Function module & already exists (delete the module) ?

  The SAP error message CD020 indicates that a function module you are trying to create or modify already exists in the system. This error typically occurs when there is an attempt to create a function module with the same name as an existing one, which is not allowed in SAP.
  Cause:
  
  Duplicate Function Module Name: The most common cause of this error is that you are trying to create a function module with a name that is already in use.
  Transport Issues: Sometimes, if you are working in a transport environment, a function module may have been transported from another system, leading to conflicts.
  Development Environment: If multiple developers are working in the same development environment, one might create a function module with a name that another developer is trying to use.
  
  Solution:
  
  
  Check Existing Function Modules: Before creating a new function module, check if a function module with the same name already exists. You can do this by using transaction code SE37 (Function Builder) and searching for the function module name.
  
  
  Rename the Function Module: If you find that the function module already exists and you need to create a new one, consider renaming your function module to something unique.
  
  
  Delete the Existing Function Module: If the existing function module is no longer needed, you can delete it. To do this:
  
  Go to transaction SE37.
  Enter the name of the function module.
  Click on the "Delete" button (you may need appropriate authorizations to delete).
  Confirm the deletion.
  
  
  
  Transport Management: If the issue is related to transport, ensure that you are working in the correct transport request and that there are no pending transports that might affect the function module.
  
  
  Consult Documentation: If you are unsure about the function module's purpose or if it is used in other programs, consult the documentation or speak with your team to avoid breaking existing functionality.
  
  
  Related Information:
  
  Function Module Naming Conventions: SAP has specific naming conventions for function modules. Ensure that your naming adheres to these conventions to avoid conflicts.
  Development Guidelines: Follow your organization's development guidelines to manage function modules and avoid naming conflicts.
  Version Control: If you are using version control or a change management system, ensure that changes to function modules are tracked properly to avoid conflicts.
  
  If you continue to experience issues or if the function module is critical, consider reaching out to your SAP Basis or development team for further assistance.