# Introduction - Sales Orders

A sales order is a document sent to customers to confirm the items and prices of a sale. A sales order is typically created after your customers accept a quote and your items are ready to be shipped or delivered.

The sales order workflow in P4 Books is as follows:

* Create a sales order detailing the items you will sell to your customers and their prices. Click the Lock button to save the sales order and prevent accidental changes.
* Once the sales order is locked, you can create the delivery, create the invoice, or create a purchase order directly from the sales order.

{% hint style="info" %}
If your P4 Books is integrated with P4 Warehouse, you will not have the option to create a delivery document. The delivery document will be sent from your warehouse once the order has been picked and packed for shipping.
{% endhint %}

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**Related:** [Quotes](/english-1/sales-transactions/introduction-quotes.md) · [Customers](/english-1/master-data/customers.md) · [Purchase Orders](/english-1/purchasing-transactions/introduction-purchase-orders.md)


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