How To Fix MPE_INSTALLATION_MSG066 - Network has comp. demand for major assembly, but network does not exist.

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_INSTALLATION_MSG -

• Message number: 066

• Message text: Network has comp. demand for major assembly, but network does not exist.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_INSTALLATION_MSG066 - Network has comp. demand for major assembly, but network does not exist. ?

  The SAP error message MPE_INSTALLATION_MSG066 indicates that there is a discrepancy in the network planning for a major assembly. Specifically, it means that there is a component demand for a major assembly, but the corresponding network (which is typically used for production planning and execution) does not exist in the system.
  Cause:
  
  Missing Network: The primary cause of this error is that the network required for the production of the major assembly has not been created or is not available in the system.
  Incorrect Configuration: There may be an issue with the configuration of the production process, such as missing routing or production version.
  Data Inconsistency: There could be inconsistencies in the master data, such as the bill of materials (BOM) or routing that do not align with the expected network.
  Planning Issues: The planning run may not have been executed correctly, leading to a situation where the demand is generated without the necessary network being established.
  
  Solution:
  
  
  Create the Missing Network: 
  
  Check if the network for the major assembly exists. If it does not, you will need to create it using transaction codes like CNO1 (Create Network) or CNO2 (Change Network).
  
  
  
  Check Routing and Production Version:
  
  Ensure that the routing for the major assembly is correctly defined and that a valid production version exists. You can check this using transaction codes like CA03 (Display Routing) and C223 (Display Production Version).
  
  
  
  Review Master Data:
  
  Verify the BOM and routing for the major assembly to ensure they are correctly set up. Use transaction codes like CS03 (Display BOM) to check the BOM.
  
  
  
  Run Planning Again:
  
  If the network has been created or corrected, run the planning process again to ensure that the demand is properly aligned with the production capabilities.
  
  
  
  Check for Data Consistency:
  
  Use transaction C223 to check for any inconsistencies in the master data that might be causing the issue.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CNO1: Create Network
  CNO2: Change Network
  CA03: Display Routing
  CS03: Display BOM
  C223: Display Production Version
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on production planning and network management.
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  Support: If the issue persists after following the above steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  By addressing the underlying causes and following the suggested solutions, you should be able to resolve the error message and ensure that the production planning process runs smoothly.