How To Fix REBDOA029 - &1 is already assigned to &2 (&3 to &4)

SAP Error Message - Details

• Message type: E = Error

• Message class: REBDOA - Messages for Object Relationships

• Message number: 029

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

What causes this issue?

&V1& is already assigned to &V2& (in the period from &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, 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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message REBDOA029 - &1 is already assigned to &2 (&3 to &4) ?

  The SAP error message REBDOA029 indicates that a specific object (like a cost center, internal order, or another entity) is already assigned to another entity in the system. This typically occurs in the context of assignments in the SAP Controlling (CO) module, particularly when dealing with cost objects or other related entities.
  Cause:
  The error message REBDOA029 occurs when:
  
  You are trying to assign an object (e.g., a cost center) to a new entity (e.g., a controlling area or a company code) while it is already assigned to another entity.
  There may be a conflict in the assignment due to existing configurations or data inconsistencies.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Assignments:
  
  Use transaction codes like KS03 (Display Cost Center) or KO03 (Display Internal Order) to check the current assignments of the object you are trying to assign.
  Verify if the object is indeed assigned to another entity.
  
  
  
  Remove Existing Assignment:
  
  If the object is assigned to an entity that is no longer valid or needed, you may need to remove the existing assignment using the appropriate transaction (e.g., KS02 for cost centers).
  
  
  
  Reassign the Object:
  
  After ensuring that the object is no longer assigned to the previous entity, you can attempt to reassign it to the desired entity using the appropriate transaction (e.g., KS01 for creating a cost center).
  
  
  
  Check Configuration:
  
  Ensure that the configuration settings in the controlling area or company code are correct and do not conflict with the assignments you are trying to make.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for specific details related to the object type you are working with, as there may be additional constraints or requirements.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing cost objects, such as KS01, KS02, KS03, KO01, KO02, KO03, etc.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to the assignments in the system.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.