Error: List View Threshold. The number of items in this list exceeds the list view threshold, which is 5000 items.

Question

Hi, i had created a SharePoint List in cloud ( office 365) using List Template.
List template contains 12000 items taken as template from SharePoint on Premise.
I am getting this error message, in SharePoint Online (Office 365)
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.
How to resolve it, to get data in my SharePoint list, any help will be appreciated.

Answer 1

With O365 lists over 5k items are now officially supported but they will have limited behaviour due to the threshold. There are no workarounds or options to increase the threshold either temporarily, for specific users or for the list itself as you have
with on-prem.
You'll need to remove enough items to get it below the threshold limit, add indexed columns to support indexed views, then re-add the items again. This article is for 2010 but the section around indexed columns and views is still accurate:
https://technet.microsoft.com/en-us/library/cc262813(v=office.14).aspx
It may be possible to add the indexes on your on-prem list where you can increase/avoid the threshold, then re-export the list. That would rely upon the list creation script adding indexes before it uploads items but it's a logical assumption.