How To Fix MDG_OTC_CUST002 - Main object type must not be identical to object type &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 002

• Message text: Main object type must not be identical to object type &1

What causes this issue?

You have entered the object type itself as the main object type.

System Response

The system cannot store changes.

How to fix this error?

Enter another object ID as the main object type or deselect the
<LB>Projection </>checkbox.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDG_OTC_CUST002 - Main object type must not be identical to object type &1 ?

  The SAP error message MDG_OTC_CUST002 indicates that there is an issue with the configuration of object types in the Master Data Governance (MDG) system. Specifically, the error states that the main object type must not be identical to the object type specified (denoted as &1 in the message).
  Cause:
  This error typically occurs in scenarios where you are trying to create or modify a data model or a process in MDG, and the system detects that the main object type (the primary entity you are working with) is the same as the object type you are trying to define or use. This is not allowed because it can lead to circular references or logical inconsistencies in the data model.
  Solution:
  To resolve this error, you should:
  
  
  Check Object Type Configuration: Review the configuration of the object types in your MDG setup. Ensure that the main object type is distinct from the object type you are trying to use.
  
  
  Modify Data Model: If you are working with a data model, ensure that the main object type and the related object types are correctly defined. You may need to create a new object type or adjust the existing ones to ensure they are not identical.
  
  
  Review Process Configuration: If this error occurs during a process (like a workflow), check the process configuration to ensure that the main object type is set correctly and does not match the object type being processed.
  
  
  Consult Documentation: Refer to the SAP documentation for MDG to understand the requirements and constraints related to object types and data models.
  
  
  Testing: After making the necessary changes, test the configuration to ensure that the error is resolved and that the system behaves as expected.
  
  
  Related Information:
  
  MDG Configuration: Familiarize yourself with the MDG configuration settings, especially those related to object types and data models.
  SAP Notes: Check for any relevant SAP Notes that might provide additional insights or fixes related to this error message.
  Community Forums: Consider searching or posting in SAP community forums for additional support from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.