How To Fix CNV_MBT890 - Package & is not to be modified due to Namespace settings

CNV_MBT890 - Overview

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 890

• Message text: Package & is not to be modified due to Namespace settings

Self-Explanatory Message

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CNV_MBT890 - Details

• The SAP error message "CNV_MBT890 Package & is not to be modified due to Namespace settings" typically occurs during the execution of a conversion or migration process in SAP, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the package you are trying to modify is protected due to its namespace settings.
  
  Cause:
  
  Namespace Restrictions: In SAP, certain packages are designated as "customer namespaces" (usually starting with "Z" or "Y") or "SAP namespaces" (like "SAP", "SAP_BC", etc.). Modifications to SAP namespaces are restricted to prevent unintended changes to standard SAP objects.
  Package Ownership: The package you are trying to modify may belong to a namespace that is not allowed for modification, either because it is a standard SAP package or it is locked for other reasons.
  Transport Layer Settings: The transport layer settings may also restrict modifications to certain packages.
  
  
  Solution:
  
  Check Package Namespace: Verify the namespace of the package