How To Fix C1179 - Date & is ignored if you do not enter a change number

C1179 - Overview

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 179

• Message text: Date & is ignored if you do not enter a change number

What causes this issue?

You can only define the effectivity of the characteristic by entering a
change number. You have entered a date, but no change number. If you do
not use change numbers, you can only maintain a characteristic on
today's date. Any date you entered is ignored.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1179 - Date & is ignored if you do not enter a change number ?

  The SAP error message C1179 indicates that a date is being ignored because a change number has not been entered. This error typically occurs in the context of change management, particularly when working with change numbers in the SAP system. Change numbers are used to track changes to materials, production processes, or other objects in SAP, and they are essential for ensuring that changes are properly documented and managed.
  
  Cause:
  The error occurs when you attempt to enter a date (such as a validity date or a change date) in a transaction or process that requires a change number to be specified. Without a change number, the system cannot associate the date with a specific change, leading to the message that the date is ignored.
  
  Solution:
  To resolve this error, you should take the following steps:
  
  
  Enter a Change Number: Ensure that you enter a valid change number in the relevant field before entering the