How To Fix IW155 - No scheduling type maintained

IW155 - Overview

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 155

• Message text: No scheduling type maintained

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 could not define a scheduling type.

How to fix this error?

Maintain the scheduling types in your system using the Customizing
function:

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

Error message extract from SAP system. Copyright SAP SE.

IW155 - Details

• The SAP error message IW155 "No scheduling type maintained" typically occurs in the context of maintenance planning and scheduling within the SAP system, particularly when working with maintenance orders or work orders. This error indicates that the system cannot find a scheduling type for the operation or task you are trying to process.
  
  Cause:
  The error can be caused by several factors, including:
  
  Missing Scheduling Type: The scheduling type has not been defined for the operation in the maintenance order or task list.
  Incorrect Configuration: The configuration settings for the maintenance planning or scheduling may not be set up correctly.
  Master Data Issues: The relevant master data (such as work center or task list) may not have the necessary scheduling information maintained.
  Order Type Settings: The order type being used may not have the scheduling type defined in its configuration.
  
  
  Solution:
  To resolve the IW155 error, you can take the following steps:
  
  
  Check the Maintenance Order:
  
  Go to the maintenance