How To Fix EU404 - &1 &2 is used in multiple master programs

SAP Error Message - Details

• Message type: E = Error

• Message class: EU - Development Environment

• Message number: 404

• Message text: &1 &2 is used in multiple master programs

What causes this issue?

The object &V1& &V2& is used in several main programs.

System Response

The object cannot be activated.

How to fix this error?

Activate the object using transaction SE80.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EU404 - &1 &2 is used in multiple master programs ?

  The SAP error message EU404 indicates that a specific object (like a program, function module, or class) is being used in multiple master programs, which can lead to conflicts or inconsistencies in the system. This error typically arises in the context of ABAP programming and development within the SAP environment.
  Cause:
  
  Multiple Usage: The object in question is referenced in more than one master program. This can happen if the same function or program is included in multiple places, leading to ambiguity about which version or instance should be executed.
  Inconsistent Versions: If different versions of the same object are being used in different master programs, it can lead to unexpected behavior or errors.
  Development Environment Issues: Sometimes, this can occur due to issues in the development environment, such as improper transport of objects or changes made without proper version control.
  
  Solution:
  
  Identify the Master Programs: Use transaction codes like SE80 (Object Navigator) or SE38 (ABAP Editor) to find out which master programs are using the object in question. You can also use the "Where-Used List" feature to trace the usage of the object.
  Refactor Code: If possible, refactor the code to ensure that the object is only used in one master program or ensure that the usage is consistent across all programs.
  Check for Duplicates: Ensure that there are no duplicate definitions of the object in different programs. If duplicates exist, consolidate them into a single definition.
  Transport Management: If the issue is related to transport requests, ensure that all relevant objects are included in the same transport request to maintain consistency across environments (development, quality assurance, production).
  Consult Documentation: Review SAP documentation or notes related to the specific error message for any additional guidance or updates that may be relevant.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  ABAP Development Guidelines: Familiarize yourself with best practices in ABAP development to avoid such issues in the future, such as proper naming conventions and modular programming.
  Testing: After making changes, thoroughly test the affected programs to ensure that the issue is resolved and that no new issues have been introduced.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with an SAP Basis or ABAP expert for further assistance.