How To Fix MILL_OC135 - The system could not determine an item category

SAP Error Message - Details

• Message type: E = Error

• Message class: MILL_OC - Messages for order combination

• Message number: 135

• Message text: The system could not determine an item category

What causes this issue?

A combined order is linked with the original orders via the item. To
generate the items, the system tries to determine an item type from
Table T418. The item type requires the entry of a material so that it
can be managed in stock and must not be a variable-size item. In an ERP
system this is item type 'L'.

System Response

The system could not find an item type with this specification.

How to fix this error?

Inform your system administrator.

Procedure for System Administrators

Maintain the relevant item type in Customizing.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MILL_OC135 - The system could not determine an item category ?

  The SAP error message MILL_OC135, which states "The system could not determine an item category," typically occurs in the context of sales order processing, material management, or production planning. This error indicates that the system is unable to identify the appropriate item category for a particular line item in a document, such as a sales order or a purchase order.
  Causes:
  
  Missing Configuration: The item category may not be configured correctly in the system. This can happen if the item category determination settings are incomplete or incorrect.
  Material Master Data Issues: The material master record may not have the necessary data filled in, such as the sales organization or distribution channel.
  Sales Document Type: The sales document type being used may not be linked to the appropriate item category.
  Condition Records: Missing or incorrect condition records for pricing or other relevant data can lead to this error.
  Customizing Settings: Customizing settings in the SAP system may