How do I get Courier Center API credentials?
Contact Courier Center customer service directly to request REST API access for your account. You'll need to provide your company information and existing Courier Center business account details. Once approved, you'll receive three credentials: User Alias (username), Credential Value (password), and API Key. Enter these in the plugin settings to activate the integration and start creating vouchers automatically.
What is the difference between standard and clean label formats?
The plugin offers two layout styles for each label size. Standard layouts include the full Courier Center branding, borders, and all shipment details in a traditional courier label format. Clean layouts provide a minimalist design with just the essential information - recipient address, sender details, barcode, and shipment number - perfect for thermal printers where space is limited or when you prefer a simpler aesthetic.
What label formats and sizes are supported?
The plugin supports 8 different label formats to match any printing setup: A4 (standard office paper), A4 Clean (simplified layout), Single PDF (one per page), Single Clean, and four thermal label options - 100x150mm and 100x170mm in both standard and clean layouts. Choose your preferred format in settings, and all vouchers will be generated in that size automatically.
Does the plugin support Cash on Delivery orders?
Absolutely! When you create a voucher for an order using the WooCommerce COD payment method, the plugin automatically detects it and includes the COD amount in the voucher data sent to Courier Center. The courier will collect payment from the customer upon delivery and transfer it to your account according to your Courier Center agreement. All COD details appear clearly on the printed label.
Can I cancel a voucher after creating it?
Yes, you can void/cancel vouchers directly through the plugin using Courier Center's API. Click the "Delete" button on any voucher in the order screen or vouchers list. The plugin calls the API's /Shipment/Void endpoint and marks the voucher as cancelled in the database. Note that once voided, vouchers cannot be restored - you'll need to create a new voucher if required.