Courier Center for WooCommerce creates, prints, cancels and traces Courier Center vouchers (shipping tickets) from your WooCommerce orders. This guide covers installation, the settings and the daily workflow.
Requirements
- WordPress 6.0 or newer and WooCommerce 3.4 or newer (High-Performance Order Storage supported)
- PHP 7.4 or newer
- Courier Center API credentials: Account Code, User Alias, Credential Value and API Key. Courier Center provides them.
- A wpslash.com licence key for the plugin
Installation
- Download the plugin .zip from your wpslash.com licences page after purchase.
- Go to WordPress Admin > Plugins > Add New, click Upload Plugin and choose the file you downloaded.
- Click Install Now and then Activate.
- Paste your licence key on the licence screen the plugin opens and click Activate. Updates then arrive in your WordPress dashboard.
Setup and Configuration
Go to WooCommerce > Settings > WPSlash Voucher Settings. The tab has two sections: Global Settings and Courier Center.
Global Settings

- Courier Center instances you will run: most stores need 1. If you have more than one set of Courier Center credentials, raise the number, save, and a section appears for each extra account (Courier Center 2, 3, …).
- Weight Calculation: a fixed weight for every voucher, or automatic from the cart weight. With Fixed, set the weight in kg in Fixed Weight.
- Weight Rewrite: lets you change the weight per order before creating the voucher.
- Enable Automatic Voucher Generation on Complete: creates the voucher by itself when you mark an order as Completed.
Courier Center

- Enter the Account Code, User Alias, Credential Value and API Key you received from Courier Center.
- Optionally set Reference Key 1 and Reference Key 2. Use
{order_number}to send your order number with the voucher. - Set the Sender Name printed on the voucher.
- Choose the Default Goods Type: Documents, or Non Documents for everything else.
- Enable Recipient Charge Option if you want to be able to bill some shipments to the recipient from the orders list.
- Enable Automatically Email Tracking Code to email the tracking code to the customer, and edit the Email Subject and Email Content. You can use
{order_id},{tracking_code},{first_name}and{last_name}. - Enable Automatically Tracing the Orders to follow every Courier Center shipment and move the order to Delivery Completed or Delivery Denied. Choose how often it checks: every hour, twice a day or every day.
- With automatic voucher generation on, you can limit it to some shipping methods and countries. Leave them empty for all. You can always create a voucher by hand for any order.
- Check Enable Courier Center Web Services and click Save changes.
Usage
Create a voucher

- Go to WooCommerce > Orders.
- In the Voucher Settings column of the order, check the Parcel Count (click Change after editing it), the Goods Type with an optional content description, and Saturday Delivery if needed.
- Click Voucher and choose Courier Center. The voucher is created and its number appears in the Tracking column.

Print, cancel and trace
After the voucher is created, the order shows Print Voucher, Cancel Voucher and Trace Voucher. Print a single voucher in A4 or thermal format, or select several orders and print them in bulk from the orders list.
Daily manifest

Go to WooCommerce > Courier Center, pick the date and click Get Daily Manifest to download the list of the day’s vouchers.
FAQs
Do I need a Courier Center account?
Yes. You need valid Courier Center API credentials: Account Code, User Alias, Credential Value and API Key. Contact Courier Center to get them.
Can I use more than one Courier Center account?
Yes. Set the number of instances in Global Settings, save, and enter each account in its own section.
Can the voucher be created automatically?
Yes. Enable Automatic Voucher Generation on Complete in Global Settings. The voucher is created when you mark the order as Completed.
How does the customer get the tracking number?
Enable Automatically Email Tracking Code in the Courier Center section. The email is sent when the voucher is created for a completed order.
Is it compatible with WooCommerce HPOS?
Yes. The plugin supports High-Performance Order Storage.