Message type: E = Error
Message class:  CNV_CMIS_A_20_FUNC - Message texts for CNV_CMIS_A_20 function modules 
Message number: 028
Message text: System type &1 not found in landscape; see long text
The status of <LS>General Settings </>is not set to green.
Define the RFC destinations of the sender and receiver systems as
follows:
Choose <LS>General Settings</>.
Choose <LS>Execute</>.
The <LS>RFC Management</> screen appears.
Choose <LS>Maintenance Area</>.
On the <LS>Definition </>tab page, enter the destination and login
details for all systems in the CMIS Analysis system landscape.
Choose <LS>Apply</>.
On the <LS>Synchronization </>tab page, choose <LS>Synchronize</>.
The system synchronizes the connections in the system landscape.
Choose the current activity to restart execution.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_CMIS_A_20_FUNC028 indicates that a specific system type is not found in the landscape configuration. This error typically arises during data migration or system conversion processes, particularly when using the SAP Landscape Transformation (SLT) or SAP Conversion tools.
Cause: Missing System Type: The system type specified in the configuration is not defined in the landscape. This could be due to a misconfiguration or an oversight during the setup. Incorrect Configuration: The landscape configuration might not have been updated to reflect the current system types in use. Data Migration Issues: If you are migrating data from one system to another, the target system type may not be recognized or properly configured in the source system.
Solution: Check Landscape Configuration: Go to the transaction code LCM (Landscape Management) or SICF (Service Maintenance) to review the landscape configuration. Ensure that the system type in question is correctly defined and matches the expected configuration. Update System Types: If the system type
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