How To Fix MDG_OTC_CUST005 - Object type &1 is main object for object type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_OTC_CUST - MDG: Object Type Code Maintenance messages

• Message number: 005

• Message text: Object type &1 is main object for object type &2

What causes this issue?

You have set the flag <DS:DE.MDG_OTC_PROJECTION>projection</> for object
type &V1&. This is not possible, because object type &V1& is the
<DS:DE.MDG_OTC_MAIN>main object</> of object type &V2&.
A main object cannot be a projection from another object.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_OTC_CUST005 - Object type &1 is main object for object type &2 ?

  The SAP error message MDG_OTC_CUST005 indicates that there is an issue related to object types in the Master Data Governance (MDG) module. Specifically, it states that the object type specified as &1 is the main object for the object type specified as &2. This typically occurs when there is a conflict or misconfiguration in the relationships between different object types in the MDG system.
  Cause:
  
  Incorrect Configuration: The error often arises from incorrect configuration in the MDG settings, where the main object type is not properly defined or linked to the subordinate object type.
  Data Model Issues: There may be issues in the data model where the relationships between the main and subordinate object types are not correctly established.
  Inconsistent Data: If the data being processed does not conform to the expected relationships between object types, this error can occur.
  Custom Development: If there are custom developments or enhancements in the MDG system, they may inadvertently cause conflicts in object type relationships.
  
  Solution:
  
  
  Check Configuration: Review the configuration settings for the object types in the MDG customizing. Ensure that the main and subordinate object types are correctly defined and linked.
  
  Navigate to the MDG customizing settings and verify the relationships between the object types.
  
  
  
  Review Data Model: Examine the data model to ensure that the relationships between the main object type and the subordinate object type are correctly set up.
  
  Use transaction code MDGIMG to access the MDG implementation guide and check the data model configuration.
  
  
  
  Data Consistency: Ensure that the data being processed adheres to the expected structure and relationships. Validate the data for any inconsistencies that may lead to this error.
  
  
  Check for Custom Code: If there are any custom developments, review the code to ensure that it does not interfere with the standard behavior of object type relationships.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to MDG and the specific object types involved for any known issues or additional guidance.
  
  
  Testing: After making changes, perform thorough testing to ensure that the error is resolved and that the relationships between object types function as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  MDG Community: Engage with the SAP community forums or support channels for insights from other users who may have encountered similar issues.
  Training and Documentation: Consider reviewing training materials or documentation related to MDG configuration and data modeling to enhance understanding of object type relationships.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.