# Cart

> Choose who writes each article, apply a promo code or PO number, and place your order by card or invoice. Nothing is charged until you check out.

Source: https://docs.serpier.com/cart

The cart collects the placements you picked on the [Marketplace](https://docs.serpier.com/marketplace), grouped by [project](https://docs.serpier.com/projects). Here you decide who writes each article, check the total, and place the order. Nothing is charged until you do. Once the order is placed, you follow it in [Orders](https://docs.serpier.com/orders), starting with the brief for each publication.

## Review what you are buying

**Your order** groups items by publication type: **SEO Publication**, **AI Publication**, and **Homepage**. Each row shows the site, the project it is for, its **Content product**, and its **Price**.

- To buy the same placement for another project, or move it there, open the row menu and select **Copy to...** or **Move to...**.
- To drop an item, select **Remove** in the row menu. **Clear cart** empties the whole cart after you confirm **Remove all**.
- A badge such as `x1.5` next to a price means it includes an industry multiplier for that project.
- Some rows are locked to **Publisher written** and say **Included in deal price**: the publisher writes the article, and the price already covers it.

An empty cart says **Your cart is empty** and links you back to the Marketplace with **Browse Marketplace**.

## Content products

Every item needs a content product before you can place the order. For SEO and AI publications it decides who writes the article and what kind of article it is. Above each group, **Choose your content** offers:

- **With content**: Serpier writes the article. Pick a writing product:
  - **SEO Publication**: **Standard**, **Journalistic**, or **Signature**
  - **AI Publication**: **Brand mention**, **PR Post**, or **Co-citation**
- **No content**: you supply the article yourself. Every unlocked row in the group is set to **Manual**.

Each product shows its fee next to the name, or **Free**. **What's included** explains what you get. **Apply to all** sets one product on every unlocked row in the group; you can still change a single row from its **Content product** menu. Products your organization does not offer are left out.

Homepage rows do not use this chooser, and their **Content product** control is disabled.

> If any row is missing a content product, the cart says **Please select a content product for all items before placing order**.

What you choose here decides what the brief asks for after checkout. See [Add a brief](https://docs.serpier.com/orders#add-a-brief).

## Apply a promo code or PO number

Under **Promo Code**, enter the code and select **Apply**. A valid code shows the discount in the **Summary**. An invalid one says why, for example a minimum spend. Remove it with the X.

If your company needs a purchase order number on the invoice, select **Add purchase order number (PO Number)** and enter it.

**Summary** lists each project's publications, then **Subtotal**, any discount, **VAT** when it applies, **Applied Credits**, and **Total**.

## Place the order

1. If the cart asks for it, select **Update billing details** and add a valid billing address. You come back to the cart afterwards.
2. Check **I agree to the Terms of Service**.
3. Select **Place order**.
4. If your organization can pay either way, choose a **Payment Method**:
   - **Card Payment**: pay now for instant processing.
   - **Invoice Payment**: pay via invoice within 7 days.

If only one method is available, you skip that choice. When your organization has credit, the summary shows **Available credit** and the order is paid by invoice so the credit can be applied. Plans, invoices, and currency are covered in [Billing](https://docs.serpier.com/billing).

## What happens after checkout

- **Card**: you pay on the card page and land on the new order. If confirmation takes longer than 30 seconds, the page says **Order confirmation is taking longer than expected** and offers **Check again**. If you cancel the card page, you are back in the cart with your items.
- **Invoice**: the order opens straight away and stays unpaid until you pay the invoice. Content work starts after payment.

Either way, the next step is to add the brief for each publication so Serpier can start.

## Related

- [Marketplace](https://docs.serpier.com/marketplace.md)
- [Orders](https://docs.serpier.com/orders.md)
- [Billing](https://docs.serpier.com/billing.md)
- [Projects](https://docs.serpier.com/projects.md)