How To Fix MDG_VALUE_MAPPING104 - Ext. code &1 is already used and no default for inbound mapping is set

MDG_VALUE_MAPPING104 - Overview

• Message type: E = Error

• Message class: MDG_VALUE_MAPPING -

• Message number: 104

• Message text: Ext. code &1 is already used and no default for inbound mapping is set

What causes this issue?

More than one mapping exists for external code &V1&. The system only
permits multiple mappings if exactly one entry is marked as default for
inbound mapping.

System Response

The system does not allow you to save this entry.

How to fix this error?

Choose from the following options:
Change the external code
Set exactly one of the entries as default for inbound mapping

Procedure for System Administrators

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.

MDG_VALUE_MAPPING104 - Details

• The SAP error message MDG_VALUE_MAPPING104 indicates that there is an issue with value mapping in the Master Data Governance (MDG) module. Specifically, the error states that an external code (represented by &1) is already in use, and there is no default mapping set for inbound processing. This typically occurs when you are trying to import or synchronize data, and the system cannot find a valid mapping for the external code provided.
  
  Cause:
  
  Duplicate External Code: The external code you are trying to use is already associated with another entry in the value mapping table.
  Missing Default Mapping: There is no default mapping defined for the external code, which means the system does not know how to handle this code during the inbound process.
  
  Configuration Issues: The value mapping configuration may not be set up correctly, leading to conflicts or missing entries.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Mappings:
  
  Go to the