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

# Concepts

> Get to know Sequence by understanding the basics

> [card] [Customers](https://docs.sequencehq.com/customers/create-customer.md)
>
> Create new customers via API, dashboard or via a connector. Optionally define parent-child hierarchies between customers.

> [card] [Billing schedules](https://docs.sequencehq.com/billing/create-billing-schedules.md)
>
> A schedule ties one or more prices to a customer over a period of time, reflecting their contract.

> [card] [Products](https://docs.sequencehq.com/plans-products/product-catalogue.md)
>
> Products are the specific SKUs in your business. Products are the parent
> object of prices.

> [card] [Prices](https://docs.sequencehq.com/plans-products/product-catalogue.md)
>
> Prices reflect the different price-points of a product across your customers. Sequence supports a breadth of pricing models (recurring,
> usage-based, seat-based, etc).

> [card] [Invoices](https://docs.sequencehq.com/invoicing/invoicing-customers.md)
>
> Create one-time invoices or auto-generate invoices with billing schedules. Send invoices and credit notes via email, PDF or as a link.

> [card] [Events & Metrics](https://docs.sequencehq.com/metrics-events/overview.md)
>
> Usage events represent units of usage you charge for. Metrics aggregate events into overall usage measure (e.g. total API calls).

> [card] [Quotes](https://docs.sequencehq.com/cpq/create-quotes.md)
>
> Quotes are pricing proposals sent to customers and can be e-signed. Accepted quotes can automatically be billed.

> [card] [Connectors](https://docs.sequencehq.com/connectors/overview.md)
>
> Sequence provides native CRM, ERP, data warehouse, payment, and e-signature connectors.


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