> ## Documentation Index
> Fetch the complete documentation index at: https://docs.m3ter.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Pricing Metrics: Aggregations

> Discover how to implement usage-based pricing and billing for your products by defining Aggregations of usage data to use as pricing metrics.

Once Meters are set up, you can define *Aggregations* of that data to give the usage metrics you want to use to price Plans for your Products. This allows you to introduce usage-based pricing and billing for your Products.

This section reviews the configuration options available for Aggregations and explains how to create them:

* [Reviewing Aggregation Options](/guides/usage-data-aggregations/reviewing-aggregation-options)
* [Creating Product Aggregations](/guides/usage-data-aggregations/creating-aggregations)
* [Creating Global Aggregations](/guides/usage-data-aggregations/creating-global-aggregations)
* [Compound Aggregations](/guides/usage-data-aggregations/compound-aggregations)
* [Working with Compound Aggregation Calculations](/guides/usage-data-aggregations/compound-aggregation-calculations)
* [Compound Aggregations - Examples](/guides/usage-data-aggregations/compound-aggregations-examples)
* [Segmented Aggregations](/guides/usage-data-aggregations/segmented-aggregations)
* [Custom SQL Aggregations](/guides/usage-data-aggregations/custom-sql-aggregations)
* [Reviewing Aggregation Details](/guides/usage-data-aggregations/reviewing-aggregation-details)