How To Fix UPO_MIG406 - PPN downstream process active

SAP Error Message - Details

• Message type: E = Error

• Message class: UPO_MIG - Message Class for PRA->UOM Migration

• Message number: 406

• Message text: PPN downstream process active

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UPO_MIG406 - PPN downstream process active ?

  The SAP error message UPO_MIG406, which states "PPN downstream process active," typically occurs in the context of the SAP Production Planning and Control (PP) module, particularly when dealing with the Production Planning Network (PPN) or during migration processes.
  Cause:
  This error indicates that there is an active downstream process that is preventing the migration or modification of certain data. In the context of SAP, a downstream process could refer to any ongoing operations or transactions that are dependent on the data you are trying to modify or migrate. This could include:
  
  Active production orders
  Open purchase orders
  Running processes in the system that are linked to the data in question
  
  Solution:
  To resolve the UPO_MIG406 error, you can follow these steps:
  
  
  Identify Active Processes: Check for any active downstream processes that might be locking the data. You can use transaction codes like CO03 (Display Production Order) or ME23N (Display Purchase Order) to see if there are any open orders.
  
  
  Complete or Cancel Processes: If you find any active processes that are not needed, you may need to complete or cancel them. Ensure that you have the necessary authorizations to do this.
  
  
  Check for Background Jobs: Sometimes, background jobs may be running that are related to the data you are trying to modify. Use transaction SM37 to check for any background jobs that might be affecting the data.
  
  
  Lock Entries: You can also check for lock entries using transaction SM12. If there are locks that are no longer needed, you can delete them (with caution).
  
  
  Consult with Your Team: If you are unsure about canceling or completing processes, consult with your production planning team or SAP Basis team to ensure that you do not disrupt ongoing operations.
  
  
  Retry the Operation: Once you have resolved any active processes, try to perform the operation that triggered the error again.
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for more details on the specific module you are working with.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with relevant transaction codes that can help you monitor and manage production orders and related processes.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.