# Commas

> Connect Commas to your Cademí: the product code in the one-time sale delivery and the Postback URL to set up in your Commas account.

Connect Commas to your Cademí so each approved purchase gives the student access on its own. You need the product code and a postback pointing to Cademí. Commas does not ask for a token.

## 1. Create the delivery in Cademí

1. In the Cademí dashboard, open **Sales > Deliveries** and add a delivery.
2. In **Select a Gateway**, pick **Commas**.
3. In **Delivery Name**, enter a name that helps you recognize it later.
4. **Sales Mode** shows only **One-time sale**: a Commas delivery has no **Subscription** option.
5. The **Gateway connection** section shows the **Product Code** field and the **Postback URL**.

Keep the delivery open: you come back to it in the next steps.

## 2. Find the product code

1. In your Commas account, copy the code of the product you deliver through Cademí.
2. Paste the code into **Product Code** in the Cademí delivery.

## 3. Set up the postback

The postback address is set up in your Commas account: paste the **Postback URL** of the delivery there and save. Then, in Cademí, save the delivery.