Message type: E = Error
Message class:  CNVMBT - Messages for MBT/API/PCL 
Message number: 001
Message text: Package &1 is not active
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The SAP error message CNVMBT001 indicates that a specific package (in this case, represented by &1) is not active. This error typically arises in the context of data migration or conversion processes, particularly when using the SAP Migration Cockpit or similar tools.
Cause: Inactive Package: The package you are trying to use for the migration or conversion process is not activated in the system. This could be due to: The package not being installed correctly. The package being deactivated intentionally or unintentionally. The package being part of a transport that has not been imported into the target system. Authorization Issues: Sometimes, the user may not have the necessary authorizations to activate or access the package. System Configuration: The system may not be configured correctly to recognize or utilize the package.
Solution: Activate the Package: Go to the transaction code SE80 (Object Navigator) or SE11 (Data Dictionary). Navigate to the package in question and check its status. If it is inactive, activate it
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