Where does the standard cost component split get updated?

I'm trying to find a trigger point where the Standard Cost Component Split is updated during cost estimate creation.  I first debugged CK11N, and found nothing relating to the update of ckmkeph.  I realized at this point, it may not update this until the release of the cost estimate.  I went to debug CKME as well and still nothing.  Does anyone else know of what transaction the CCS is actually updated?

I've researched the user exits for CK11N and none of those are relevant to my issue, so I was hoping to find the code myself to find a potential solution.

Thanks in advance.