If you set up a Sales Order List filter for company 1 called Fred and you set this, close and reopen Sage then the filter is remembered.  If you then open company 2, and go to the SOP list view it will show everything unfiltered.  Lets say there isnt any filters for SOP in Company 2, so if you close and reopen Sage into Company 1 then the filter is reset to show all.  This is because the default filter is stored in one file for SO List views in FormState and doesnt have the ability to know what company the filter is for.

Can Sage200 handle this better?  Alternatively implement Make filters available across different companies v2015 and newer - Sage 200 UK Ideas Hub - Sage 200 UK - Sage City Community