# Set the forecast and schedule interval in Amazon Connect
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You can set the granularity for your short-term forecasts and your schedules.

**Important things to know**
+ You must have security profile permissions for **Analytics**, **Forecast and schedule interval - Edit**. For more information, see [Assign permissions](required-optimization-permissions.md).
+ You must specify an interval for short-term forecasting and scheduling.
+ Amazon Connect supports 15- or 30-minute intervals. For example, if you select 30 minutes as the interval, your short-term forecasts are generated for 30-minute intervals (that is, 20 contacts between 9:00 AM-9:30 AM), and your schedules are computed for 30 minute intervals.
+ You must set up a forecast and a schedule interval before you can generate forecasts or create forecast groups. 
+ After you set the forecast and schedule interval, you cannot change it.

**To set the forecast and schedule interval**

1. Log in to the Amazon Connect admin website.

1. On the Amazon Connect navigation menu, select **Analytics and optimization**, **Forecasting**.

1. Choose the **Forecast and schedule interval** tab. You'll see this tab only if you have the appropriate security profile permissions.  
![\[The Forecasting page, the Forecast and schedule interval tab, the 15 minute interval option.\]](http://docs.aws.amazon.com/connect/latest/adminguide/images/wfm-forecast-schedule-interval.png)

1. Choose one of the following options:
   + **15 minute interval** – Generates short-term forecasts in 15-minute intervals. For example, 20 contacts between 9:00 AM to 9:15 AM, and 30 contacts between 9:15 AM to 9:30 AM.
   + **30 minute interval** – Generates short-term forecasts in 30-minute intervals. For example, 20 contacts between 9:00 AM to 9:30 AM, 30 contacts between 9:30 AM to 10:00 AM.