IW146 - No assembly defined for operation &

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 146

• Message text: No assembly defined for operation &

What causes this issue?

You tried to select components via the <GL:assembly>assembly</> of an
operation. However, you did not define an assembly in this operation.

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?

Define an assembly in operation &, or search for a component in the
structure list of the reference object.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW146 - No assembly defined for operation & ?

  The SAP error message IW146 ("No assembly defined for operation &") typically occurs in the context of maintenance orders or work orders when the system cannot find an assembly (or component) that is supposed to be linked to a specific operation in the order. This can happen for various reasons, such as missing configuration, incorrect data entry, or issues with the master data.
  Causes:
  
  Missing Assembly Definition: The assembly or component that should be linked to the operation is not defined in the system.
  Incorrect Operation Assignment: The operation in the work order may not be correctly assigned to the assembly.
  Master Data Issues: The material master or BOM (Bill of Materials) may not be set up correctly, leading to the assembly not being recognized.
  Configuration Issues: The configuration settings for the order type or operation may not be set up to allow for the assembly to be linked.
  Data Inconsistencies: There may be inconsistencies in the data that prevent the system from recognizing the assembly.
  
  Solutions:
  
  
  Check Assembly Definition:
  
  Go to the relevant transaction (e.g., IW32 for changing work orders) and check if the assembly is defined for the operation in question.
  Ensure that the assembly is correctly linked to the operation.
  
  
  
  Review BOM and Material Master:
  
  Verify that the BOM for the material is correctly defined and that the assembly is included.
  Check the material master data to ensure that all necessary fields are filled out correctly.
  
  
  
  Validate Operation Assignment:
  
  Ensure that the operation is correctly assigned to the assembly in the work order.
  If necessary, reassign the operation to the correct assembly.
  
  
  
  Check Configuration Settings:
  
  Review the configuration settings for the order type and operations to ensure that they allow for the assembly to be linked.
  Consult with your SAP configuration team if you suspect configuration issues.
  
  
  
  Data Consistency Check:
  
  Run data consistency checks to identify any discrepancies in the master data or order data.
  Use transaction codes like CS02 (Change BOM) or CS03 (Display BOM) to check the BOM details.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance related to your version of SAP and the context of the error.
  
  
  
  Related Information:
  
  Transaction Codes: IW32 (Change Order), IW31 (Create Order), CS01 (Create BOM), CS02 (Change BOM), CS03 (Display BOM).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Roles: Ensure that the user has the necessary authorizations to view and modify the relevant data.
  
  If the issue persists after checking these areas, it may be beneficial to consult with your SAP support team or a technical consultant who can provide deeper insights into the specific configuration and data setup in your SAP environment.