How To Fix IW129 - End time interval may not be positive

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 129

• Message text: End time interval may not be positive

What causes this issue?

You maintained a value for the <GL:time_interval>time interval</> that
falls after the end date of the <GL:operation>operation</>. This is not
allowed.

System Response

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

How to fix this error?

Enter a different time interval for the end of the
operation element.

How can this happen?

The sub-operation should be finished 1 hour before the end of the
operation. The maintenance planner responsible enters
<LB>1- h</> in the field <LS>TimeInterval end</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW129 - End time interval may not be positive ?

  The SAP error message IW129 ("End time interval may not be positive") typically occurs in the context of work order processing, particularly when dealing with time entries for operations or activities in a maintenance order. This error indicates that the end time for a specific operation or activity is set incorrectly, leading to a situation where the end time is earlier than the start time or is not defined properly.
  
  Cause:
  
  Incorrect Time Entry: The end time for an operation is set to a time that is earlier than the start time.
  Missing Time Data: The end time may not be filled in, leading the system to interpret it as a positive value.
  Data Entry Error: Manual entry errors during the creation or modification of work orders or operations.
  
  
  Solution:
  To resolve the IW129 error, you can follow these steps:
  
  
  Check Time Entries:
  
  Go to the work order or operation in question.
  Verify the start and end times for