> ## Documentation Index
> Fetch the complete documentation index at: https://help.maestra.io/llms.txt
> Use this file to discover all available pages before exploring further.
# What is an Order?
**An order** is a sequence of actions that records every status change for every order line item.
At the integration stage, [a custom field](/api-integrations/how-to-create-a-custom-field) is created in the Maestra system (e.g. entity: Order, field type: External ID).
This custom field will later be populated with the external IDs of orders. **This ID is mandatory.**
Once an order is recorded in the database, an additional **Maestra order ID is also automatically generated.**
An order consists of **line items**. Every line item is a product with its own status and quantity.
Let’s take a look at a sample order.
The first action of this order is **Order creation**:
**Line items**:
Aqua Professional Suit with the **Placed** status at \$2 000;
Sunset Orange Professional Suit with the **Placed** status
at \$1 500.
A $20 discount was applied to the order. This makes **the total cost**: $3 480.
Since all the orders have a first action, you can conveniently filter orders by the date of the first action.
Once the line items are paid for, the order lines change their statuses to **Delivered**:
You can view all statuses of a single order in the Actions tab. Simply enter the order ID in the filter:
