Message type: E = Error
Message class:  CNV_IUUC_REPL_ADV_SE - MEssage class for package CNV_IUUC_REPL_ADV_SETTINGS 
Message number: 178
Message text: Target table template can have '/' and '_' special characters only
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The SAP error message CNV_IUUC_REPL_ADV_SE178 indicates that there is an issue with the naming convention of a target table template in the context of SAP's data replication or conversion processes. Specifically, the error states that the target table template can only contain the special characters '/' and '_'.
Cause: This error typically arises when the name of the target table template includes invalid characters. In SAP, certain naming conventions must be adhered to, and the use of special characters other than '/' and '_' is not permitted. This can happen if: The table name was manually entered with invalid characters. A configuration or mapping file contains incorrect naming conventions. There is a mismatch in the expected format of the table name due to system settings or customizations.
Solution: To resolve this error, you should: Check the Target Table Name: Review the name of the target table template that is causing the error. Ensure that it only contains valid
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