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Message type: E = Error
Message class:  CNV_DMC_MC - Migration Object Modeler 
Message number: 079
Message text:  Name must start with a valid namespace ('Y' or 'Z' or '/
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The SAP error message CNV_DMC_MC079 indicates that a name you are trying to use does not conform to the naming conventions required by SAP. Specifically, it states that the name must start with a valid namespace, which can be either 'Y', 'Z', or a custom namespace that begins with a forward slash (e.g., '//').
Cause: This error typically occurs in the following scenarios: Invalid Object Name: You are trying to create or reference an object (like a table, function module, or class) that does not start with the required namespace. Custom Development: In custom development, SAP requires that custom objects use a specific naming convention to avoid conflicts with standard SAP objects. Migration or Conversion Activities: If you are using tools for data migration or conversion (like SAP S/4HANA Migration Cockpit), this error may arise if the names of the objects being processed do not adhere to the naming rules.
Solution: To resolve this error, you should: Check
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