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

SAP Error Message - Details

• 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 date. The change number should correspond to the change you are trying to make.
  
  
  Check Change Management Settings: If you are unsure about the change number to use, check the change management settings or consult with your SAP administrator or change management team to identify the correct change number.
  
  
  Review Documentation: If you are unfamiliar with the process, refer to the relevant SAP documentation or user guides that explain how to use change numbers and manage changes in the system.
  
  
  Consult with Colleagues: If you are still having trouble, consider reaching out to colleagues or team members who have experience with the specific transaction or process you are working on.
  
  
  Related Information:
  
  
  Change Management in SAP: Understanding how change management works in SAP can help you navigate issues related to change numbers and dates. Familiarize yourself with the relevant modules, such as SAP PLM (Product Lifecycle Management) or SAP ECC (Enterprise Central Component).
  
  
  Transaction Codes: Depending on the context of the error, you may be using specific transaction codes (e.g., CS01 for creating a BOM, or CA01 for creating a routing) that require change numbers. Knowing the transaction codes can help you understand where the error is occurring.
  
  
  SAP Notes and Support: If the issue persists or if you believe it may be a bug, check the SAP Support Portal for any relevant SAP Notes or updates related to this error message.
  
  
  By following these steps, you should be able to resolve the C1179 error and proceed with your work in SAP.