How To Fix IAOM028 - Object not known in CO

IAOM028 - Overview

• Message type: E = Error

• Message class: IAOM - Account Assignment Manager Messages

• Message number: 028

• Message text: Object not known in CO

What causes this issue?

You want to post to the object with technical key &v1& belonging to the
<DS:GLOS.31CE1B848009D511BCBC0800060D9C68>business scenario</> &v2&.
However, there is no
<DS:GLOS.3526B5B0AFAB52B9E10000009B38F974>Controlling object</>
assigned to this object.

System Response

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

INCLUDE NA_ALLG_NOVERARBEITUNG OBJECT DOKU ID TX LANGUAGE EN

How to fix this error?

Example:
You bill an order item in an external system and transfer the billing
document to Accounting. An error occurs when the
<DS:GLOS.3526B886AFAB52B9E10000009B38F974>CO account assignment</> is
determined because the order item is not yet assigned to a Controlling
object. The error occurs either when the order item is transferred to
Accounting, or while the transferred order item is being processed:
Check the transfer log for the <ZH>order item</> in the external system,
and start the transfer of the order item again.
Then start the transfer of the <ZH>billing document</> to Accounting
again.

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 IAOM028 - Object not known in CO ?

  The SAP error message IAOM028: Object not known in CO typically occurs in the context of Controlling (CO) when the system cannot find a specified object, such as a cost center, internal order, or other controlling objects. This can happen for various reasons, including data entry errors, missing master data, or configuration issues.
  Causes:
  
  Incorrect Object Code: The object code entered may be incorrect or misspelled.
  Missing Master Data: The object (e.g., cost center, internal order) may not exist in the system or may not be activated.
  Data Deletion: The object may have been deleted or archived in the system.
  Authorization Issues: The user may not have the necessary authorizations to access the object.
  
  Configuration Issues: There may be issues with the configuration of the controlling area or the object type.
  
  Solutions:
  
  Verify Object Code: Check the object code you are entering for typos or errors. Ensure that it is the correct code for the intended object.
  Check Master