How To Fix LD456 - Work center &1 is used in sequence &2 and sequence &3.

SAP Error Message - Details

• Message type: E = Error

• Message class: LD - Logistics Automotive Line Design

• Message number: 456

• Message text: Work center &1 is used in sequence &2 and sequence &3.

What causes this issue?

You are trying to edit a routing in the line balancing graphic. In this
routing, the same work center is used for operations from at least two
sequences. Routing such as this cannot be edited in the line balancing
graphic.

System Response

The line balancing graphic cannot be started.

How to fix this error?

Change the routing so that the work center is only used for operations
that are in the same sequence.
You can of course use several sequences in the routing. However, all
operations assigned to the same work center must also be assigned to
the same sequence.
If this restriction is adhered to, the routing can be edited in the
line hierarchy graphic.

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 LD456 - Work center &1 is used in sequence &2 and sequence &3. ?

  The SAP error message LD456 indicates that a work center is being used in multiple sequences, which can lead to conflicts in scheduling or resource allocation. This error typically arises in the context of production planning and control, particularly when dealing with routing and work center assignments.
  Cause:
  The error occurs when:
  
  A work center (e.g., a machine or labor resource) is assigned to more than one sequence in a routing or production order.
  The system does not allow a work center to be utilized in multiple sequences simultaneously, as it can lead to scheduling conflicts.
  
  Solution:
  To resolve the LD456 error, you can take the following steps:
  
  
  Review Work Center Assignments:
  
  Check the sequences in which the work center is assigned. You can do this by navigating to the routing or production order where the error occurred.
  Identify the sequences that are using the same work center.
  
  
  
  Modify Sequences:
  
  If possible, modify the routing or production order to ensure that the work center is only assigned to one sequence at a time.
  You may need to reassign tasks to different work centers or adjust the sequence of operations.
  
  
  
  Check for Overlapping Operations:
  
  Ensure that the operations assigned to the work center do not overlap in time. If they do, consider rescheduling one of the operations.
  
  
  
  Consult with Production Planning:
  
  If you are unsure about how to adjust the sequences or if the work center needs to be used in multiple sequences, consult with your production planning team for guidance.
  
  
  
  Use Alternative Work Centers:
  
  If the work center is critical for multiple sequences, consider using alternative work centers that can perform similar tasks.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CA03 (Display Routing) or CO02 (Change Production Order) to view and modify the relevant data.
  Work Center Configuration: Review the configuration of the work center in transaction CR01 (Create Work Center) to ensure it is set up correctly for the intended operations.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates related to this error message.
  
  By following these steps, you should be able to resolve the LD456 error and ensure that your production planning processes run smoothly.