How To Fix CN403 - Enter unit

CN403 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 403

• Message text: Enter unit

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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CN403 - Details

• The SAP error message CN403 "Enter unit" typically occurs in the context of project management or cost planning within the SAP system, particularly when dealing with cost elements, activities, or resources that require a unit of measure to be specified.
  
  Cause:
  The error message CN403 is triggered when a user attempts to create or modify a cost planning entry (such as a cost element or activity) without specifying a unit of measure. This is essential for SAP to understand how to interpret the quantities being entered (e.g., hours, pieces, etc.).
  
  Solution:
  To resolve the CN403 error, you should:
  
  
  Check the Entry: Ensure that you have entered a valid unit of measure in the relevant field. This could be in a cost planning transaction or when defining activities/resources.
  
  
  Define Units of Measure: If you are unsure about the available units of measure, you can check the configuration in the SAP system:
  
  Go to the transaction code CUNI (Unit