How To Fix IP459 - Predecessor to & not yet confirmed

SAP Error Message - Details

• Message type: E = Error

• Message class: IP - Messages for preventive maintenance

• Message number: 459

• Message text: Predecessor to & not yet confirmed

What causes this issue?

You have tried to release a <GL:maintenance_call>maintenance call</>
although the preceeding maintenance call has not yet been confirmed.
This is not allowed because of the scheduling parameters of the
<DS:GLOS.maintenance_plan>maintenance plan</>.

System Response

INCLUDE 'KEINE-VERARBEITUNG' OBJECT DOKU ID TX LANGUAGE EN

How to fix this error?

If you want to process the selected call, you must first confirm the
preceeding maintenance call or complete the accompanying
<DS:GLOS.maintenance_call_object>call objects</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IP459 - Predecessor to & not yet confirmed ?

  The SAP error message IP459 ("Predecessor to & not yet confirmed") typically occurs in the context of production planning and scheduling within the SAP system, particularly when dealing with production orders, maintenance orders, or similar processes that involve dependencies between tasks or operations.
  Cause:
  This error indicates that there is a predecessor operation or task that has not yet been confirmed. In SAP, operations can be linked in a sequence where one operation must be completed (confirmed) before the next one can start. If the predecessor operation is still open or unconfirmed, the system will not allow the subsequent operation to proceed, resulting in this error message.
  Solution:
  To resolve the IP459 error, you can follow these steps:
  
  
  Check Predecessor Operations: Identify the predecessor operation that is causing the issue. You can do this by reviewing the production order or maintenance order in question.
  
  
  Confirm Predecessor Operations: If the predecessor operation is still open, you need to confirm it. This can typically be done through the transaction code CO15 (for production orders) or IW41/IW42 (for maintenance orders). Make sure to enter the correct order number and confirm the operation.
  
  
  Review Order Status: Ensure that the status of the predecessor operation is appropriate for the subsequent operation to start. If the predecessor operation is in a status that does not allow confirmation, you may need to change its status.
  
  
  Check Dependencies: If there are multiple predecessor operations, ensure that all of them are confirmed. The system requires all predecessors to be completed before allowing the next operation to proceed.
  
  
  Consult Documentation: If you are unsure about the specific operations or the process flow, refer to your organization's documentation or SAP help resources for guidance on the specific order types and their dependencies.
  
  
  Contact Support: If the issue persists after confirming the predecessor operations, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO15 (Confirm Production Order), IW41/IW42 (Confirm Maintenance Order), and COHV (Mass Processing of Production Orders) for managing order confirmations.
  Order Management: Understanding the order management process in SAP, including how operations are linked and the importance of confirming operations in the correct sequence, is crucial.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that could resolve the issue.
  
  By following these steps, you should be able to resolve the IP459 error and ensure that your production or maintenance processes continue smoothly.