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