How To Fix CNV20551105 - There are no MM reference plants

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 105

• Message text: There are no MM reference plants

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551105 - There are no MM reference plants ?

  The SAP error message CNV20551105, which states "There are no MM reference plants," typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is unable to find any reference plants in the Material Management (MM) module that are necessary for the migration process.
  Cause:
  
  Missing Reference Plants: The most common cause of this error is that there are no reference plants defined in the system. Reference plants are essential for mapping materials and their associated data during the migration.
  Configuration Issues: There may be configuration issues in the MM module that prevent the system from recognizing existing plants.
  Data Migration Settings: Incorrect settings or parameters in the data migration tool can lead to this error.
  Authorization Issues: Lack of proper authorizations to view or access the reference plants can also trigger this error.
  
  Solution:
  
  
  Define Reference Plants:
  
  Go to the SAP Easy Access screen and navigate to the following path: 
  Logistics -> Materials Management -> Plant Maintenance -> Master Data -> Define Reference Plant
  
  Ensure that at least one reference plant is defined in the system.
  
  
  
  Check Configuration:
  
  Verify the configuration settings in the MM module to ensure that plants are correctly set up and active.
  Use transaction codes like SPRO to access the configuration settings and check for any missing or incorrect entries.
  
  
  
  Review Migration Settings:
  
  Check the settings in the migration cockpit or tool you are using to ensure that they are correctly configured to recognize the reference plants.
  Ensure that the mapping of materials and plants is correctly set up.
  
  
  
  Authorization Check:
  
  Ensure that the user executing the migration has the necessary authorizations to access and view the reference plants.
  You may need to consult with your SAP security team to verify and adjust user roles and permissions.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the migration process for any specific requirements or steps that may have been overlooked.
  
  
  
  SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. SAP Notes can provide patches or additional guidance on resolving known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01 (Create Material), MM02 (Change Material), and MM03 (Display Material) to manage material data.
  Migration Cockpit: Understand how to use the SAP S/4HANA Migration Cockpit effectively, including the prerequisites for data migration.
  SAP Community: Engage with the SAP Community forums for insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the CNV20551105 error and successfully proceed with your data migration process.