How To Fix MILL_OC078 - Order categories are not identical

SAP Error Message - Details

• Message type: E = Error

• Message class: MILL_OC - Messages for order combination

• Message number: 078

• Message text: Order categories are not identical

What causes this issue?

You tried to combine different order categories.

System Response

The system terminates the operation.

How to fix this error?

Only combine orders of the same category.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MILL_OC078 - Order categories are not identical ?

  The SAP error message MILL_OC078: Order categories are not identical typically occurs in the context of production planning and order management, particularly when dealing with production orders, process orders, or similar entities in the SAP system. This error indicates that there is a mismatch in the order categories of the orders being processed or compared.
  Cause:
  The error arises when you attempt to perform an operation (such as a transfer, confirmation, or comparison) involving multiple orders that have different order categories. For example, you might be trying to combine or process a production order and a process order together, which are classified under different categories.
  Solution:
  To resolve the MILL_OC078 error, you can take the following steps:
  
  
  Check Order Categories: Review the order categories of the orders involved in the operation. You can do this by checking the order details in the SAP system. Ensure that all orders you are trying to process belong to the same category.
  
  
  Correct Order Selection: If you are trying to combine or process multiple orders, ensure that you are only selecting orders of the same category. If necessary, filter your selection to include only compatible orders.
  
  
  Review Configuration: If you believe that the orders should be compatible, check the configuration settings in the SAP system. There may be settings that define which order categories can be processed together.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details about the order categories in your system. This can provide insights into how different order types are defined and managed.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored assistance based on your specific configuration and business processes.
  
  
  Related Information:
  
  Order Categories: In SAP, order categories define the type of order (e.g., production order, process order, maintenance order) and determine how the order is processed within the system.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., CO01 for creating production orders, CO02 for changing them) to navigate the system effectively.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional context or solutions based on known issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.