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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message IAOM_OM013 - Maintain account assignment category for purchasing document type &1 ?

  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 the SAP Easy Access screen.
  Navigate to the following path: 
  SPRO -> SAP Reference IMG -> Materials Management -> Purchasing -> Purchase Order -> Set Up Stock Transport Order -> Define Account Assignment Categories
  
  
  
  
  Maintain Account Assignment Categories:
  
  In the configuration screen, look for the option to define account assignment categories.
  Ensure that the account assignment category you want to use is assigned to the relevant purchasing document type.
  If it is not present, you can add it by selecting the appropriate document type and assigning the necessary account assignment categories.
  
  
  
  Check Document Type Settings:
  
  Ensure that the document type you are using is correctly configured to allow the desired account assignment categories.
  You can check this under:
  SPRO -> SAP Reference IMG -> Materials Management -> Purchasing -> Purchase Order -> Set Up Stock Transport Order -> Define Document Types
  
  
  
  
  Test the Configuration:
  
  After making the necessary changes, try to create or process the purchasing document again to see if the error persists.
  
  
  
  Related Information:
  
  Account Assignment Categories: These categories determine how costs are allocated in purchasing documents. Common account assignment categories include:
  
  K: Cost Center
  P: Project
  A: Asset
  F: Order
  
  
  Document Types: Different document types in SAP (like standard purchase orders, stock transport orders, etc.) may have different requirements for account assignment categories.
  Authorization: Ensure that you have the necessary authorization to make changes in the configuration settings.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or MM consultant for further investigation.