How To Fix PPE8455 - Routing contains cycle

SAP Error Message - Details

• Message type: E = Error

• Message class: PPE8 - Messages From Explosion in iPPE

• Message number: 455

• Message text: Routing contains cycle

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PPE8455 - Routing contains cycle ?

  The SAP error message PPE8455, which states "Routing contains cycle," indicates that there is a cyclic dependency in the routing of a production process. This means that the routing steps are set up in such a way that they create a loop, preventing the system from determining a valid sequence of operations.
  Cause:
  
  Cyclic Routing: The routing may have been defined in a way that one operation leads back to a previous operation, creating a cycle.
  Incorrect Sequence: The sequence of operations may not be correctly defined, leading to a situation where the system cannot progress through the routing.
  Missing or Incorrectly Defined Operations: If operations are not properly defined or linked, it can lead to cycles.
  Changes in Routing: Recent changes to the routing or operations may have inadvertently created a cycle.
  
  Solution:
  
  Review the Routing: Check the routing steps in the production order or the routing master data. Look for any operations that point back to a previous operation.
  Correct the Sequence: Ensure that the operations are sequenced correctly and that there are no loops. Each operation should lead to the next without returning to a previous step.
  Use the Routing Check Tool: SAP provides tools to check the routing for errors. Use these tools to identify and correct any cyclic dependencies.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on how to properly set up routings without cycles.
  Test Changes: After making corrections, test the routing to ensure that the error no longer occurs.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like CA03 (Display Routing) or CA02 (Change Routing) to view and modify routing details.
  SAP Notes: Check SAP Notes for any known issues or patches related to routing and cyclic dependencies.
  Training and Documentation: Consider training for users involved in creating and managing routings to prevent future occurrences of this error.
  
  By following these steps, you should be able to identify and resolve the issue causing the PPE8455 error in SAP.