We have a SharePoint custom list that was developed in SPD2010, it consists of three lists..
List1 - Main Dashboard records
List2 - Record Detail
List3 - Record History
From the main Dashboard display of List1 the use can click a hyperlink to open that records detail from List2?ID=@ID
That display is two webparts, webpart1 on filters List2 for ID=ID, webpart2 then shows all the history update record from List3 where ID=ID
worked fine under 2010 and works fine under o365 unless List3 exceeds 5000 lines. Even though we have a filter on the webpart we get the following error...
The number of items in this list exceeds the list view threshold, which is 5000 items. Tasks that cause excessive server load (such as those involving all list items) are currently prohibited.
Is there ANY WAY to correct this?