How To Fix REBDCA064 - &1 must not be assigned under &2

REBDCA064 - Overview

• Message type: E = Error

• Message class: REBDCA - Messages for Master Data - General

• Message number: 064

• Message text: &1 must not be assigned under &2

What causes this issue?

You tried to assign object &V1& to an architectural object.
However, you already assigned usage object &V2& in the same period
and within the same architectural hierarchy.

System Response

These two objects cannot be assigned in this order in the
hierarchy.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

REBDCA064 - Details

• The SAP error message REBDCA064 typically occurs in the context of the SAP Real Estate Management (RE) module, particularly when dealing with master data assignments. The message indicates that a specific object (like a business partner, property, or contract) is not allowed to be assigned to another object due to certain restrictions or rules defined in the system.
  
  Cause:
  The error message REBDCA064 usually arises due to one of the following reasons:
  
  
  Incorrect Assignment: The object you are trying to assign (e.g., a business partner) is not compatible with the target object (e.g., a property or contract) based on the configuration or business rules in your SAP system.
  
  
  
  Configuration Issues: There may be specific settings in the configuration of the Real Estate Management module that restrict certain assignments. This could be due to organizational rules, legal requirements, or system settings.
  
  
  Data Integrity Issues: There might be existing data integrity issues that prevent the assignment from