To optimize persistence, SILOs have been introduced, which in contrary to the basic data persistence saves data per application rather than as a whole.


This improves the amount of data that needs to be loaded as only the data needed for this very application gets loaded during application start.


Since mid 2023 new created customers will be configured with the following PowerTag (on company level):

!UPCS_SILO=%app_silo%

where %app_silo% stands for the application executable (except for Microsoft Office, where all Office applications share the same silo)



Furthermore the following variables are allowed:

!UPCS_SILO=%app_exe%
!UPCS_SILO=%app_id%


If you have applications that belong together, such as Office (Word, Excel, Powerpoint, ...) you might want to put them all into one combined silo, then you can use any name, like the following:

!UPCS_SILO=m365

In the case of Office, this is useful because you only have to log in once and are logged in automatically to the other applications. If you don't combine you have to log in into every application seperately.


Be aware that !UPCS_INCLUDE and !UPCS_EXCLUDE don't work in conjunction with SILOs