How To Fix CN423 - Enter only positive values between 0-100 for start of interval

CN423 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 423

• Message text: Enter only positive values between 0-100 for start of interval

What causes this issue?

The offset for the milestone date may not be <ZH>before</> the activity
finish, ie. it cannot have a negative value.

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX

How to fix this error?

Enter a positive value for the offset.

Error message extract from SAP system. Copyright SAP SE.

CN423 - Details

• The SAP error message CN423 ("Enter only positive values between 0-100 for start of interval") typically occurs in the context of project management or cost planning within SAP, particularly when dealing with intervals for cost planning or budgeting.
  
  Cause:
  This error message is triggered when a user attempts to enter a value for the "start of interval" that is either:
  
  Negative
  Greater than 100
  Not a numeric value
  
  The system expects a percentage value that falls within the range of 0 to 100, as it is often used to define intervals for cost distribution, planning, or other related functions.
  
  Solution:
  To resolve this error, follow these steps:
  
  
  Check Input Value: Ensure that the value you are entering for the "start of interval" is a positive number and falls within the range of 0 to 100. 
  
  
  Correct Data Entry: If you have mistakenly entered a negative number or a number greater than 100, correct it to a valid percentage value.
  
  
  Review