How To Fix 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