How To Fix O4139 - Please enter a time unit of measure

O4139 - Overview

• Message type: E = Error

• Message class: O4 - IS-Oil: MAP message pool

• Message number: 139

• Message text: Please enter a time unit of measure

What causes this issue?

You have specified a period before or a period after, without
specifying a time unit of measure. The system cannot therefore
calculate the start and end dates of the averaging period.

System Response

The system requires you to enter a time unit of measure.

How to fix this error?

Enter a time unit of measure if you want to use the period before/after
functionality.

Error message extract from SAP system. Copyright SAP SE.

O4139 - Details

• The SAP error message O4139, "Please enter a time unit of measure," typically occurs when a user is trying to enter a time-related value in a field that requires a specific unit of measure (UoM) for time, but that unit has not been specified or is missing.
  
  Cause:
  
  Missing Time Unit: The most common cause of this error is that the user has not specified a time unit of measure (e.g., hours, days, weeks) when entering a time-related value.
  Incorrect Configuration: The system may not be properly configured to recognize the time units that are expected in the context of the transaction or module being used.
  Field Settings: The field settings in the relevant transaction or configuration may not be set up to allow for the entry of time units.
  
  
  Solution:
  
  Enter a Time Unit: Ensure that you are entering a valid time unit of measure in the appropriate field. This could be selecting from a