How To Fix MDG_OTC_CUST001 - Main object type &1 must not be a projection object type

MDG_OTC_CUST001 - Overview

• Message type: E = Error

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

• Message number: 001

• Message text: Main object type &1 must not be a projection object type

What causes this issue?

You have assigned main object type &V1& to the projection object type
&V2&. This is not allowed because &V2& is a projection object.

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

System Response

The system cannot save data changes.

How to fix this error?

Choose a main object type that is not a projection object.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

MDG_OTC_CUST001 - Details

• The SAP error message MDG_OTC_CUST001 indicates that the main object type specified in your operation is a projection object type, which is not allowed in the context of the operation you are trying to perform. This error typically arises in the context of Master Data Governance (MDG) when working with object types that are not fully defined or are intended for specific use cases.
  
  Cause:
  
  Projection Object Type: The main object type you are trying to use is a projection object. Projection objects are typically used for specific views or representations of data and are not meant to be used as main objects in certain operations.
  Incorrect Configuration: The configuration of the object types in your MDG setup may not be correctly defined, leading to the use of a projection object where a base object is expected.
  Data Model Issues: There may be issues with the data model configuration, where the object types are