How To Fix IW154 - Scheduling type defined by system

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 154

• Message text: Scheduling type defined by system

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

The system selects a scheduling type as a default, since no scheduling
type has been maintained for the <GL:order_type>order type</> given in
your system.

How to fix this error?

Maintain the scheduling type for the order type given using the
Customizing function:

<DS:TRAN.OIOC>Proceed</>
ENDIF
INCLUDE 'DARF-NICHT' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW154 - Scheduling type defined by system ?

  The SAP error message IW154, which states "Scheduling type defined by system," typically occurs in the context of maintenance planning and scheduling within the SAP system, particularly in the Plant Maintenance (PM) module. This error indicates that the scheduling type for a maintenance order or task is set to a system-defined value that does not allow for manual changes or adjustments.
  Cause:
  The error is usually caused by one of the following reasons:
  
  System Configuration: The scheduling type for the maintenance order is set to a predefined value in the system configuration, which restricts users from changing it.
  Order Type Settings: The order type associated with the maintenance order may have specific settings that enforce a particular scheduling type.
  User Authorization: The user may not have the necessary authorizations to change the scheduling type.
  Data Inconsistencies: There may be inconsistencies in the data related to the maintenance order or task that prevent changes to the scheduling type.
  
  Solution:
  To resolve the IW154 error, consider the following steps:
  
  
  Check Order Type Configuration:
  
  Navigate to the configuration settings for the order type in transaction code SPRO.
  Go to Plant Maintenance and Customer Service > Maintenance Processing > Maintenance Order > Order Types.
  Review the settings for the order type to see if the scheduling type is set to a fixed value.
  
  
  
  Review Scheduling Type:
  
  Check the scheduling type assigned to the maintenance order. If it is set to a system-defined value, you may need to change the order type or adjust the configuration.
  
  
  
  User Authorizations:
  
  Ensure that the user has the necessary authorizations to modify the scheduling type. This may involve checking roles and permissions in the user profile.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for specific details on the scheduling types and their implications.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IW31 (Create Order), IW32 (Change Order), and IW33 (Display Order) to manage maintenance orders.
  SAP Notes: Check for any SAP Notes related to IW154 for additional insights or patches that may address the issue.
  Training and Documentation: Consider training resources or documentation on Plant Maintenance processes to better understand how scheduling types work within SAP.
  
  By following these steps, you should be able to identify the cause of the IW154 error and implement a suitable solution.