How To Fix MDG_DT_DATA_MODEL129 - &1 and &2 in SAP namespace; relation name must be in customer namespace

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_DT_DATA_MODEL - Messages for the Configuration Workbench Model Access API

• Message number: 129

• Message text: &1 and &2 in SAP namespace; relation name must be in customer namespace

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_DT_DATA_MODEL129 - &1 and &2 in SAP namespace; relation name must be in customer namespace ?

  The SAP error message MDG_DT_DATA_MODEL129 typically indicates an issue related to data model definitions in SAP Master Data Governance (MDG). The message suggests that a relation name must be in the customer namespace, which means that the relation you are trying to use is not defined correctly or is not in the expected namespace.
  
  Cause:
  
  Namespace Issue: The relation name you are trying to use is likely in the standard SAP namespace instead of the customer namespace. In SAP, customer-specific developments should be done in the customer namespace (usually starting with "Z" or "Y").
  Incorrect Configuration: The data model or the relationship you are trying to define may not be configured correctly in the MDG system.
  Missing Customization: If you are trying to use a relation that has not been properly defined or customized in your MDG setup, this error can occur.
  
  
  Solution:
  
  Check Relation Name: Ensure that the relation name you are using is defined