# Zonal

> Documentation for Zonal

## Default

### Getting started

- [Overview](https://zonal.mantledocs.com/overview)
- [Create a courier](https://zonal.mantledocs.com/create-a-courier): Learn how to create a courier in Zonal, add a unique reference code, and use blacklist or whitelist collections correctly.
- [Create a shipping rate](https://zonal.mantledocs.com/create-a-shipping-rate): Learn how to create a shipping rate in Zonal, link it to a courier, and set zones, delivery days, and rate rules.

### Features

- [Features Overview](https://zonal.mantledocs.com/features-overview)
- [Create a holiday](https://zonal.mantledocs.com/create-a-holiday): Learn how to create a holiday in Zonal so holiday dates are excluded from shipping calculations and skipped automatically.
- [Change the shipping rate message](https://zonal.mantledocs.com/change-the-shipping-rate-message): Change the shipping rate message shown at checkout in Zonal. Choose Default or Customisable formatting and update the delivery date display.
- [Use discounted basket total](https://zonal.mantledocs.com/use-discounted-basket-total): Learn how the Use discounted basket total setting changes order value shipping rates in Zonal, based on basket totals before or after discounts.

### FAQs

- [FAQs Overview](https://zonal.mantledocs.com/faqs-overview)
- [About courier reference codes](https://zonal.mantledocs.com/courier-reference-codes): Learn how Courier Reference Code works in Zonal, why each courier needs a unique code, and what to do if Zonal prompts you to update it.
- [Postcode rules in shipping rates](https://zonal.mantledocs.com/postcode-rules-in-shipping-rates): Learn how postcode whitelist and blacklist rules work in Zonal, including wildcard matching and how to avoid rates applying too broadly.

### Troubleshooting

- [Troubleshooting Overview](https://zonal.mantledocs.com/troubleshooting-overview)
- [Why is my courier not showing as expected?](https://zonal.mantledocs.com/courier-not-showing-correctly): Troubleshoot why a courier shows incorrectly or not at all in Zonal, including courier setup, shipping rates, reference codes, and postcode rules.
- [Why are my postcode blacklist/whitelist rules not working as expected?](https://zonal.mantledocs.com/postcode-rule-troubleshooting): Postcode blacklist or whitelist not working? Check wildcard scope, spacing, rate conditions, and where rules were added in Shipping Rates.