Functionality is only supported in S/4 HANA systems
Message type: E = Error
Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)
Message number: 420
Message text: Functionality is only supported in S/4 HANA systems
Self-Explanatory Message
SAP has defined this message as ‘self-explanatory’ and therefore, has not provided any further details for it.
All messages in SAP have a message text (shown above). However, the message text is not always useful enough to understand or resolve the issue.
Therefore, most messages in the SAP system provide additional long text with details about what caused the issue, how it can be resolved, what actions to take or configuration changes to make, etc
Unfortunately, this specific error message does not provide such additional information.
What else can you do?
Even though this error message does not provide any useful or additional message details, you can still try to solve the issue by searching on SAP’s support portal. In many cases, there could be an SAP support note that provides further error explanations or even directions for resolving the error.
Related Error Messages
CNV_IUUC_REPLICATION419 Cannot replicate data from field &1 (table &2); see long text
CNV_IUUC_REPLICATION418 Repair of proxy table &1 has failed
CNV_IUUC_REPLICATION421 Cannot display table information; table name exceeds 30 characters
CNV_IUUC_REPLICATION422 Replication from legacy database to SAP Vora is not supported