# Set an order number prefix

Source: https://support.storeconnect.com/articles/how-to-set-order-reference-number-prefix · Last modified 21 August 2026

Add a custom prefix to your store's order reference numbers by creating a store variable. Use this process to make order numbers easier to recognize, for example by prefixing them with your store's initials.

## Set an order number prefix

1.  Open your store in StoreConnect.
2.  Go to the **Store Variables** related list and click **New**.
3.  Give the variable a **Name**, such as `Order Reference Prefix`.
4.  Set the **Key** to `order_reference_prefix`.
5.  In the **Value** field, enter the prefix you want, for example `OC`.

    ![Store variable record with the order_reference_prefix key and a prefix value](https://res.cloudinary.com/hzkr6fi81/image/upload/v1781677731/documentation-media/order-reference-prefix.png)

6.  Click **Save**.

## Confirm it is working

Place a test order, or check the next new order, and confirm its reference number begins with the prefix you set.

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StoreConnect Support — https://support.storeconnect.com/articles/how-to-set-order-reference-number-prefix