Message type: E = Error
Message class:  CNV_CMIS_A_20 - Message class for Cross-Client Customizing Comparison (SLO) 
Message number: 001
Message text: Enter a valid package ID
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The SAP error message CNV_CMIS_A_20001: Enter a valid package ID typically occurs in the context of data migration or conversion processes, particularly when using the SAP Conversion Management Information System (CMIS). This error indicates that the system is expecting a valid package ID to be entered, but the provided ID is either missing, incorrect, or does not exist in the system. Causes: Missing Package ID: The user did not enter any package ID. Invalid Package ID: The entered package ID does not match any existing package in the system. Typographical Error: There may be a typo in the package ID entered by the user. Authorization Issues: The user may not have the necessary permissions to access the package. System Configuration: There may be issues with the configuration of the CMIS or the data migration setup. Solutions: Check Input: Ensure that you have entered a valid package ID. Double-check for any typographical errors. Verify Package Existence: Use transaction codes like
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