Solved
How to reset SiteUID
I used the createSite Service in Thing: PTC.SCA.SCO.DefaultShiftManager to make shifts.
I made several sites as a test. And I used the delteSite Service to erase sites.
but The site deleted without initialization of 'siteUID'
For example I made four sites.and then I delete 1,2,3,4 siteUID.
After I made new site but I got '5' siteUID I want to get '1' siteUID
I want to know how to reset siteUID. Thank you.

