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

# Purchasing settings

> Cost handling, document branding and default supplier emails for your purchase orders

Purchasing has its own settings, at **Settings → Purchasing**, covering how costs behave, how your purchase order documents look, and the default email sent to suppliers.

## Costs

* **Allocate purchase order costs by** - the default method for spreading shipping and fees across a new order's units: **Value** (in proportion to line cost) or **Quantity** (equally per unit). Each order can override this until its first receipt. See [costs and landed cost](/user-guide/purchasing/purchase-orders/costs).
* **Sync landed cost to Shopify** - when on, after each receipt Stockful updates the variant's **cost per item** in Shopify to its new average landed cost, so Shopify's margins match yours.

<Warning>
  Syncing overwrites the existing cost per item in Shopify and can't be undone. It's **off by default** - leave it off if you maintain cost per item another way.
</Warning>

## Document branding

Set a **company display name** and upload a **logo** (PNG or JPG, up to 1 MB). These appear on your [purchase order PDFs](/user-guide/purchasing/purchase-orders/sending), packing slips and supplier emails. The company name falls back to your store name when left blank.

## Purchase order emails

Set the default **subject** and **message** used when you [email a purchase order](/user-guide/purchasing/purchase-orders/sending) to a supplier. You can edit any email before it sends, and blank fields fall back to these defaults.

Use placeholders that fill in automatically:

* `{{po_number}}` - the order's reference number
* `{{supplier_name}}` - the supplier's name
* `{{contact_name}}` - the supplier contact
* `{{store_name}}` - your store name