How To Fix CL564 - Change with change number not allowed on the date you entered

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 564

• Message text: Change with change number not allowed on the date you entered

What causes this issue?

You cannot make the change with the change number you entered because
the allocation has already been maintained on the valid-from date of
this change number without a change number or with another change
number. You can only make changes with one change number on any given
date.

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?

Enter the change number that has already been used to make a change on
this date.
You can display the change overview to help you choose a change number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL564 - Change with change number not allowed on the date you entered ?

  The SAP error message CL564 ("Change with change number not allowed on the date you entered") typically occurs in the context of change management within SAP, particularly when dealing with change numbers in the classification system or when managing changes to materials or documents.
  
  Cause:
  This error message is triggered when you attempt to make a change to a classification or a material using a change number that is not valid for the date you have specified. The reasons for this could include:
  
  
  Change Number Validity: The change number you are trying to use may not be valid for the date you entered. Change numbers have specific validity periods, and if the date falls outside this range, the system will not allow the change.
  
  
  Date Mismatch: The date you are trying to use for the change might not align with the effective date of the change number. For example, if the change number is