How To Fix REBDAO048 - There is already another object type (&1) on the same level

REBDAO048 - Overview

• Message type: E = Error

• Message class: REBDAO -

• Message number: 048

• Message text: There is already another object type (&1) on the same level

What causes this issue?

You tried to assign two different architectural object types on the
<ZH>same</> level below a given object in the hierarchy. This assignment
is not allowed.

System Response

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

How to fix this error?

Assign only objects of one object type on a hierarchy level.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

REBDAO048 - Details

• The SAP error message REBDAO048 indicates that there is a conflict with object types at the same level in a project or structure. This typically occurs in the context of SAP Project System (PS) or SAP Real Estate Management (RE) when you are trying to create or modify an object (like a project, WBS element, or investment measure) that conflicts with an existing object of a different type at the same hierarchical level.
  
  Cause:
  The error is triggered when:
  
  You attempt to create or assign an object (e.g., a WBS element) at a level where another object of a different type already exists.
  For example, if you have a project and you try to add a WBS element at the same level where a network or another project already exists, this error will occur.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Objects: Review the structure of the project or hierarchy where