"change, Copy & save" change both version valu

Question: hi,
after I execute a planning folder and let's say i get data for "version 0" as follows.

Version 0
=========

Name Value
AAAA 10

"Name & Version" are characteristics and "Value" is Keyfigure.

Now, I'm interested in creating "Version 1" by changing value from 10 to 15.
I've a planning sequence (copy function) "create version" button which when clicked, creates "version 1" with new value 15. After saving this, Not only version 1 has new value 15 but "version 0" also has new value 15. But, I'd like to have 10 for "version 0" and 15 for "version 1". How do i achieve this? Am i going in a right direction?

I know, as i've changed "value" for version 0 (to save it as version 1), "version 0" retains the changed value when i hit on "save" icon in excel. But, I need to avoid this.

These are the steps I followed.

1. Execute planning folder for "version 0". (displays 10)
2. Change value 10 to 15 in excel and hit "Create Version" button. (copies value 15 from version 0 to 1)
3. click on "save" icon in excel (saves value 15 in both version 0 & 1)

Looks like, I need to avoid clicking "save" icon in the excel to keep intitial value 10 for "version 0".
& if i use Function Modules, API_SEMBPS_GET_DATA & API_SEMBPS_SET_DATA, does this save value 15 for "version 1". Is this worth of trying? Has anyone worked on this? appreciate sharing your experiences.

Appreciate your ideas.

Answer:
hey clemson,
looks like u r trying to log the history of plan data?
check this link out.
/forums/viewtopic.php?p=378694&highlight=#378694

there is actually a Function module which does a fantastic job of logging the history of plan data and your results will have the actual version values, difference in plan values and finally the forecast values with a user name, and time of when the planning sequence/function was executed.
Vamsh

Answer:
you should copy from version 0 to 1 first and then made changes to the value.
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