How To Fix REBDOA031 - &1 is already assigned to &2 (&3 to &4)

REBDOA031 - Overview

• Message type: E = Error

• Message class: REBDOA - Messages for Object Relationships

• Message number: 031

• Message text: &1 is already assigned to &2 (&3 to &4)

What causes this issue?

&V1& is already assigned to &V2& (in period &V3& to &V4&).
Multiple assignment during the same period is not allowed in this case.

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 a different object. If this involves the assignment of a rental
object to an occupancy contract or contract offer, and you only want
<DS:DE.REBDASSIGNONLYINFO>informational</> assignment, then set the
indicator.
Setting the indicator is only possible if this is allowed in
<DS:SIMG.REFXV_TIVBDOBJASSCN>Customizing</> for this assignment.

Procedure for System Administrators

INCLUDE RECA_CUSTOMIZED_MESSAGE_INFO OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message REBDOA031 - &1 is already assigned to &2 (&3 to &4) ?

  The SAP error message REBDOA031 indicates that a specific object (like a cost center, internal order, or another entity) is already assigned to another entity, and therefore cannot be assigned again to a different one. This error typically arises in the context of assignments in the SAP Controlling (CO) module, particularly when dealing with cost objects.
  
  Cause:
  The error occurs when:
  
  You attempt to assign an object (e.g., a cost center) to a new entity (e.g., a profit center) while it is already assigned to another entity.
  The system enforces unique assignments for certain objects to maintain data integrity and consistency.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Current Assignments:
  
  Use transaction codes like KS03 (Display Cost Center) or KOB1 (Display Actual Line Items) to check the current assignments of the object in question.
  Identify where the object is currently assigned and to which entity.
  
  
  
  Remove Existing Assignment:
  
  If the object needs to be reassigned, you