SPO - Set Server Resource Quota

Setting this feature is very useful to get e-mail notification about the server resource usage cap and also using solutions like CRM list component. The third party solutions work based on the available resource.

Open the SharePoint admin center. Go to Classic features >> More classic features >> Classic site collections page >> Open

Select the site collection and click on Server Resource Quota

On the Set Server Resource Quota dialog box, shown in below, configure the following options and then click Save:

Limit the Server Resource Quota For Each Selected Site Collection To A Maximum Of: This option allows you to configure the maximum server resource allocated to each site collection. A figure of 0 indicates that no quota is set for the site collection.


Send e-mail when each selected site collection resource usage reaches warning level at: Allows you to configure an email to be automatically sent after the resource usage allocated to the site collection reaches the specified percentage. 

The e-mail is sent to Primary Site Collection  Administrator.