How To Fix CMCL104 - Item has already been assigned to another operation

CMCL104 - Overview

• Message type: E = Error

• Message class: CMCL - Service layer for component allocations

• Message number: 104

• Message text: Item has already been assigned to another operation

What causes this issue?

You want to assign an item to an operation. This item is already
assigned to operation &V1&. You can, however, only assign a position to
several operations, if these operations are executed as alternatives.

How can this happen?

Operation 10 from the master sequence of your task list is replaced by
operation 10 of an alternative sequence if the lot size is greater than
1000 pieces. You can assign the same position to both operations.

System Response

The component assignment cannot be created.

How to fix this error?

Check the existing component assignment to operation &V1&.
Delete this assignment if necessary and then assign the item to the
desired operation.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMCL104 - Item has already been assigned to another operation ?

  The SAP error message CMCL104 ("Item has already been assigned to another operation") typically occurs in the context of production planning and control, particularly when dealing with operations and components in a production order or a routing. This error indicates that the item you are trying to assign to a specific operation is already linked to another operation, which prevents it from being assigned again.
  
  Cause:
  
  Duplicate Assignment: The item (component) is already assigned to a different operation within the same production order or routing.
  Routing Configuration: The routing for the production order may have predefined assignments that conflict with your current assignment attempt.
  Order Status: The production order may be in a status that does not allow changes to assignments (e.g., released, in process).
  Data Integrity Issues: There may be inconsistencies in the data, such as incorrect routing or operation definitions.
  
  
  Solution:
  
  Check Existing Assignments: Review the current assignments for the item in the production order