Complete installation & configuration guide for Courier Center Voucher for WooCommerce
In this guide you’ll see, step-by-step, how to install and configure Courier Center Voucher for WooCommerce, how to correctly enter Courier Center test/live API credentials, how to complete the required test scenario (voucher issuance/printing/cancellation), and how to use the plugin daily directly from WooCommerce orders, with tracking and email notifications.
Περιεχόμενα
1) Before you start (API Credentials from Courier Center)
To use the plugin, Courier Center API credentials are required. Typically, Courier Center provides test credentials first (staging) and, after the test is successfully completed, provides the live credentials (production).
You will need:
Username (UserAlias)
Password (CredentialValue)
API Key
Note: If you received separate credentials for test and production, always start with the test ones until Courier Center confirms that the test scenario has been completed successfully.
2) Installation & activation
Installation works like any WooCommerce plugin:
Log in to WordPress with administrator permissions.
Go to Plugins → Add New.
Click Upload Plugin.
Select the .zip file you downloaded after purchase.
Click Install Now and then Activate.
3) API connection settings (Credentials)
Open the plugin settings page (e.g. from VGDev Solutions → Courier Center).
In the API Connection Details section, fill in:
Username (UserAlias)
Password (CredentialValue)
API Key
Save & Connection Test (correct order)
After filling in the credentials:
Click “Save Settings” first, so the new data is stored.
Then click “Test Connection” to confirm the communication with Courier Center works correctly.
4) General settings (weight, printing, status, etc.)
In the General Settings section you’ll find options that affect daily operation.
Default weight (kg)
The Default weight (kg) field works as a fallback when weight cannot be calculated.
If you leave the field empty, the plugin will automatically pull product weights (as set in WooCommerce) and calculate the total order weight based on them.
If some products have no weight, it’s useful to set a safe value (e.g. 1kg or whatever fits your store) to avoid issues when issuing a voucher.
Important: Voucher issuance cannot be completed for an order with zero weight.
Tip: Ideally, set a weight on all products for accurate calculations.
Label / print size
From the Label Size field you choose the default voucher print format, depending on how you print. Available options:
A4 / A4 Clean (for A4 printing)
Single PDF / Single Clean (1 voucher per PDF file)
Single 100×150 / Clean 100×150 (label format 100×150 mm)
Single 100×170 / Clean 100×170 (label format 100×170 mm)
Convert to uppercase
If you want recipient details (address etc.) to be converted to uppercase (without accents), enable this option.
Change order status
If you want, you can set an automatic order status change when a voucher is created (or leave it with no change).
5) Test operation (Courier Center test scenario)
Courier Center typically requires confirmation that the following work correctly:
voucher issuance
voucher printing
voucher cancellation
How to enter test credentials
Example format of test credentials (indicative):
User: CourierCenterAPITestUser
Password: CourierCenterAPITestUser
ApiKey: CourierCenterAPITestKey
Fill the above into Username / Password / API Key and proceed with testing.
Step-by-step test
Enter the test credentials in the plugin settings and click Save Settings.
Click Test Connection and confirm the connection is successful.
Create a test order or open an existing order that is Processing.
In the order’s right sidebar, inside the Courier Center Voucher box, click Create voucher.
Click Print and save the voucher PDF.
To complete the test scenario, click Cancel.
Inform Courier Center that the test was completed and attach the test voucher PDF.
Wait for the live credentials and replace them in the settings.
Warning: Don’t accidentally stay on test credentials, otherwise you’ll keep issuing test vouchers.
6) Issuing a voucher from the order (daily use)
After setup, you manage everything directly from the order:
Go to WooCommerce → Orders
Open the order
In the Courier Center Voucher box, click Create voucher
After issuance, options are usually available such as:
Print: download voucher PDF
Tracking: view shipment tracking (if supported/returned)
Cancel: cancel the voucher when needed
Useful information (voucher fields)
In the voucher box you may see fields such as:
Parcels (default 1)
Weight
Cash on Delivery (when payment is COD)
Comments
Important for cancellation: Before cancelling a voucher, it’s recommended/required to follow Courier Center’s process (often communication with Courier Center is needed).
7) Email Tracking & Preview
In Email & Tracking Settings you can enable:
Send Tracking Email to the customer when the order is completed
Choose the email tracking color (border/button)
Preview the email so you can see how it looks before enabling it
8) Debug Mode (logs)
There is a Debug Mode option that logs requests/responses to a log file for troubleshooting.
Use it when:
voucher creation fails
there is a printing/PDF download issue
you need to send technical information to support
Warning: Don’t keep Debug Mode enabled without a reason.
9) Frequently Asked Questions (FAQ)
“Test Connection” fails — what should I check?
Make sure you clicked Save Settings before testing.
Verify Username / Password / API Key are correct.
Check whether a hosting firewall/security plugin blocks outgoing requests.
A voucher is not created, what should I check first?
Make sure the order weight is not 0.
Add weights to your products or set a Default weight.
Confirm the recipient details are correct (address / postal code / phone).
When is the tracking email sent?
It is sent when the order is completed and there is available tracking / a shipment number (depending on the plugin settings).
10) Print formats / label sizes
The plugin supports the available print templates/formats provided by Courier Center via Web Services. From the “Label Size” setting you can select:
A4: standard A4 printing
A4 Clean: A4 in a “clean” format (cleaner layout/less info, depending on Courier Center template)
Single PDF: one voucher per PDF file
Single Clean: one voucher per PDF in “clean” format
Single 100×150: one voucher in 100×150 mm
Clean 100×150: 100×150 mm in “clean” format
Single 100×170: one voucher in 100×170 mm
Clean 100×170: 100×170 mm in “clean” format
Note: Vouchers are returned ready-made by Courier Center Web Services. Choose the format that matches your printing workflow (A4 printer or label/thermal printer for 100×150 / 100×170).
11) Support
For any issue or question regarding the setup/operation of the plugin, you can contact technical support at info@vgdevsolutions.gr