*On Proxylevel: ets (ExportTimeStamp), its (ImportTimeStamp)
*On ProxyPropertylevel: ets (ExportTimeStamp), its (ImportTimeStamp)
{{Attention|Be aware, that SPECIAL CASES WHERE THERE NEEDS TO BE A VALUE CALCULATED FOR A TS BECAUSE THE MOST INTUITITIT IS NOT AVAILABLE}}
==On ObjectLevel / BaseClass ==
# the TimeStamp of the LastChange from the PropertyValueChangeLog if the PropertyValueChangeLog is available or
# the property’s UBIKAttribute.UpdateTimeStamp
# {{Attention|Be aware, that are special cases when this value becomes calculated differently. If you are unsure about this please do not hesitate to aks our development team as they can inform you well about how these special cases work.}}
=== CTS ===