Learn how to transform raw usage data into billable rated records by configuring a Rating processor.

1. Navigate to Mediation > Meters
2. Create a Custom meter.
3. Select and drag the Rating processor type on to the meter stream page.
4. In the Rating settings page, enter a Name for the processor.
5. Specify the field mappings.
   Field mappings define the join logic, how event records should be matched to reference data.

   Field	Required	Description
   Subscription Number	No	Identifier for the subscription.
   Charge Number	No	Unique identifier of the charge.
   Quantity	Yes	The amount of usage to be rated.
   Price Quantity	No	Cumulative usage to determine the correct tier in tiered/volume pricing models. Mandatory for tiered/volume pricing models, otherwise optional.
   Event Time	No	Use a field value from the event to accurately identify the applicable charge segment. If left blank, the latest timestamp will be used to determine the event time.
   Date Time Format	No	Date time format corresponding to the Event Time.

   Sample Date Time formats

   Format Pattern	Sample Value	Notes
   yyyy-MM-dd	2025-09-08	ISO-like date, safest and most common
   M/d/yyyy	9/8/2025	Allows single-digit month/day
   dd-MM-yyyy	08-09-2025	Year/Month/Day with slashes
   yyyyMMdd	20250908	Date + hour:minute (24h)
   yyyy-MM-dd HH:mm	2025-09-08 14:30	Date + hour:minute (24h)
   yyyy-MM-dd HH:mm:ss	2025-09-08 14:30:59	Date + time to seconds
   yyyy-MM-dd'T'HH:mm:ss	2025-09-08T14:30:59	ISO-8601 style with T separator
   yyyy-MM-dd HH:mm:ss.SSS	2025-09-08 14:30:59.123	Includes milliseconds
   MM/dd/yyyy hh:mm a	09/08/2025 02:30 PM	US-style date with 12h clock + AM/PM

6. Click Save.