Viewing the current user cap on list items

If the number of items displayed in a field list is not what it needs to be, then you can view the current user-level cap in the User Preferences, to find out what it is set to.

Caps are designed to maintain the performance of your local system and of the database server. Because data retrieved from the server resides on your local system in a collection, retrieval of a large number of records or list items can put unnecessary demands on the database server and slow system performance.

Note: For customers operating in a cloud-tenant farm, the farm's system administrator can set a record cap that applies to the entire farm. System administrators for on-premises installations can also set system-wide record caps. For more information, see About caps.

Select View > User Preferences.
If you use the web client, then click the Behavior tab. If you use the Windows client, then click the Runtime Behaviors tab.
In the web client, determine the value set in the List Record Cap section. In the Windows client, determine the value set in the User List Record Cap section.
The selected option shows the current user-level cap on list items that are retrieved for drop-down lists.