How To Fix MPE_INSTALLATION_MSG075 - No network exists for major assembly &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_INSTALLATION_MSG -

• Message number: 075

• Message text: No network exists for major assembly &1

What causes this issue?

The multilevel BOM hierarchy of your end item defines nested major
assemblies. The concept for assembling major assemblies expects a
network for every major assembly. One of the major assemblies does not
have a network in the project.

System Response

It is not possible to plan the assembly of the major assembly without a
network, nor will the system create component demand for the major
assembly?s installation kits, which can result in missing component
procurement.

How to fix this error?

Create a network for the major assembly.

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_MSG075 - No network exists for major assembly &1 ?

  The SAP error message MPE_INSTALLATION_MSG075 with the description "No network exists for major assembly &1" typically occurs in the context of SAP's Project System (PS) or when dealing with assembly processing in the Manufacturing or Logistics modules. This error indicates that the system cannot find a network (a sequence of activities) associated with the specified major assembly.
  Cause:
  
  Missing Network Assignment: The major assembly specified in the error does not have an associated network defined in the system.
  Incorrect Configuration: The configuration for the assembly or project might be incomplete or incorrect.
  Data Inconsistency: There may be inconsistencies in the master data or project data that prevent the system from linking the major assembly to a network.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or access the network related to the major assembly.
  
  Solution:
  
  
  Check Network Assignment:
  
  Go to the Project System (PS) or relevant module and check if the major assembly has a network assigned to it.
  If not, create a network for the major assembly or assign an existing network.
  
  
  
  Review Configuration:
  
  Ensure that the configuration for the major assembly is complete and correct. This includes checking the project structure and ensuring that all necessary components are in place.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the project or assembly data to identify any discrepancies. This can often be done using transaction codes like CJ20N (Project Builder) or CJ03 (Project Display).
  
  
  
  Authorization Check:
  
  Verify that the user has the necessary authorizations to access the network and major assembly. If not, contact your SAP security administrator to grant the required permissions.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on handling this error in the context of your particular SAP version and configuration.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance, especially if this is a recurring issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CJ03 (Project Display), and others that may help in managing projects and networks.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that could resolve the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the error message MPE_INSTALLATION_MSG075 effectively.