How To Fix IAOM_OM013 - Maintain account assignment category for purchasing document type &1

IAOM_OM013 - Overview

• Message type: E = Error

• Message class: IAOM_OM - Outsourced Manufacturing

• Message number: 013

• Message text: Maintain account assignment category for purchasing document type &1

What causes this issue?

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

System Response

How to fix this error?

Maintain an account assignment category for the purchasing document type
&1 in the customizing of the CO scenario assignment.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

IAOM_OM013 - Details

• The SAP error message IAOM_OM013 indicates that there is a missing configuration for the account assignment category for a specific purchasing document type. This error typically arises when you are trying to create or process a purchasing document (like a purchase order) and the system cannot find the necessary account assignment category settings.
  
  Cause:
  The primary cause of this error is that the account assignment category for the specified purchasing document type has not been maintained in the system. This can happen if:
  
  The document type is newly created and the necessary configurations have not been set up.
  The account assignment category has been deleted or not properly assigned to the document type.
  There is a mismatch between the document type and the account assignment category being used.
  
  
  Solution:
  To resolve this error, you need to maintain the account assignment category for the specified purchasing document type. Here are the steps to do this:
  
  
  Access the Configuration:
  
  Go to