How To Fix MPE_INSTALLATION_MSG021 - The same parameter eff. value is used in different projects

MPE_INSTALLATION_MSG021 - Overview

• Message type: E = Error

• Message class: MPE_INSTALLATION_MSG -

• Message number: 021

• Message text: The same parameter eff. value is used in different projects

What causes this issue?

You accidentally used the same model-unit for different networks.

System Response

In complex assembly, parameter effectivity is used to identify a single
end-item unit and to relate BOM items of different levels to the
end-item unit. We use projects to coordinate end-item assembly. This may
be more complicated if you use several projects or several WBS elements
to make the same end-item unit.

How to fix this error?

Change the model/unit of the network using transaction <AB>CJ20N</>.

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 MPE_INSTALLATION_MSG021 - The same parameter eff. value is used in different projects ?

  The SAP error message MPE_INSTALLATION_MSG021 indicates that the same effective value for a parameter is being used in different projects within the system. This typically occurs in the context of project management or configuration where parameters are expected to be unique across different projects to avoid conflicts or inconsistencies.
  
  Cause:
  The error is triggered when:
  
  You attempt to assign the same effective value of a parameter to multiple projects.
  The system enforces a rule that requires each project to have unique parameter values to maintain data integrity and avoid confusion.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Conflicting Parameters:
  
  Review the projects involved and identify which parameters are causing the conflict. You may need to check the configuration settings or project definitions.
  
  
  
  Modify Parameter Values:
  
  Change the effective value of the parameter in one of the projects to ensure that it is unique. This may involve:
  Renaming the parameter.
  Adjusting the value to something that does