> For the complete documentation index, see [llms.txt](https://support.ordereazi.com/central/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.ordereazi.com/central/order-management/documents/purchasing-documents.md).

# Purchasing documents

What you buy has to match what you sold, or you end up with stock nobody ordered, or a client order you can't fill. In OrderEazi, you buy from your suppliers on the same project you sold on, so every purchase is tied to the client's order and its profit. Purchasing documents are created in this order:

1. [**Purchase orders**](/central/order-management/documents/purchasing-documents/purchase-orders.md)**:** You order the products from each supplier.
2. [**Goods received vouchers**](/central/order-management/documents/purchasing-documents/goods-received-vouchers.md)**:** You record what arrived. With an Enterprise licence, the warehouse does this.
3. [**Supplier invoices**](/central/order-management/documents/purchasing-documents/supplier-invoices.md)**:** You capture the supplier's invoice, and its cost updates the project's profit.

**Example:** A client orders 20 chairs and 5 desks from two suppliers. You create a purchase order for each supplier. When the chairs arrive, you record them on a goods received voucher, and when the supplier's invoice comes in, you capture it against the purchase order.

### Related pages

* [Documents](/central/order-management/documents.md): create documents and manage them on the project
* [Suppliers](/central/order-management/suppliers.md): the suppliers you buy from