A 2-second continuous video play is when someone views a video for 2+ seconds continuously, usually with at least 50% of the video in view.
A 3-second video play is recorded when someone views a video for 3 seconds or views 97% of a video that is less than 3 seconds long.
An Account Spending Limit is the lifetime limit on the amount your ad account can spend across all of the campaigns that you’re running. This is a limit set by the advertiser within the Payment Settings. You can edit, remove, or reset your Account Spending Limit at any time.
Every Business Manager has an Ad Account Creation Limit. It typically starts at 1 and builds with history of running ads and paying your bills to Meta. Your limit can be found on the Business Info page of your Business Manager. To increase your limit more rapidly, contact a Meta account rep.
An ad set is a Facebook ads grouping where settings like targeting, scheduling, optimization, and placement are determined.