IW122 - Materials cannot be allocated to sub-operations

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 122

• Message text: Materials cannot be allocated to sub-operations

What causes this issue?

You want to allocate material to a <GL:sub-operation>sub-operation</>.
This function is not possible.

System Response

INCLUDE 'KEINE-FUNKTION' OBJECT DOKU ID TX LANGUAGE E

How to fix this error?

Allocate the materials that you require for a sub-operation to the
<GL:operation>operation</> to which the sub-operation is allocated.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW122 - Materials cannot be allocated to sub-operations ?

  The SAP error message IW122, which states "Materials cannot be allocated to sub-operations," typically occurs in the context of production orders or maintenance orders when there is an issue with the allocation of materials to specific sub-operations within a work order. Here are the common causes, potential solutions, and related information for this error:
  Causes:
  
  Missing Material Master Data: The material may not be properly defined in the material master, or it may not be set up for the specific plant or storage location.
  Incorrect BOM (Bill of Materials): The BOM for the operation may not include the required materials, or the components may not be correctly assigned to the sub-operation.
  Stock Availability: There may not be enough stock available for the materials required for the sub-operation.
  Incorrect Work Center Settings: The work center associated with the operation may not be configured correctly to handle the materials.
  Status of the Order: The production or maintenance order may be in a status that does not allow for material allocation (e.g., if the order is already completed or closed).
  Material Type Restrictions: The material type may have restrictions that prevent it from being allocated to the operation.
  
  Solutions:
  
  Check Material Master Data: Ensure that the material is correctly set up in the material master, including the necessary views (e.g., basic data, purchasing, and accounting).
  Review BOM: Verify that the BOM is correctly defined and that the materials are assigned to the correct operations and sub-operations.
  Check Stock Levels: Use transaction codes like MB52 or MMBE to check the stock levels of the required materials. If stock is insufficient, consider creating a stock transfer or procurement order.
  Validate Work Center Configuration: Ensure that the work center is correctly configured to handle the materials and that it is active.
  Order Status: Check the status of the order. If the order is in a status that does not allow for changes, you may need to change the status or create a new order.
  Material Type Settings: Review the material type settings in the configuration to ensure that there are no restrictions preventing allocation.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IW31 (Create Order), IW32 (Change Order), IW33 (Display Order), and CS01/CS02 (Create/Change BOM).
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to IW122.
  Documentation: Review SAP documentation or help files related to production planning and order management for additional insights.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the required actions related to material allocation.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in production planning or materials management.