Returnflows supports direct integration with Webshipper, letting you create return labels using your own carrier contracts – and control exactly which carriers are available.
✅ Step-by-step: How to connect Webshipper
Go to Settings → Shipping in Returnflows
Choose Webshipper and click Install
🔐 Fill in your API details
When connecting Webshipper, you’ll be asked for:
Field | What it means |
Account Name | Your Webshipper subdomain, e.g., |
API Key | Created in Webshipper (see below) |
Limited Carrier IDs (optional) | Use to restrict Returnflows access to specific carriers |
🧪 How to get your API Key from Webshipper
Log in to Webshipper
Go to Settings → Access & Tokens
Click Create API token
Set Expires = Never
Tick “Select all” to give full access
Click Save → Copy the generated token
→ Paste it into Returnflows as your API Key
🎛 Limited Carrier IDs (optional)
If you want to restrict Returnflows to only certain carriers (e.g. in 3PL setups):
Go to your chosen carrier in Webshipper
Look in the URL for the carrier ID
→ e.g./connect/carriers/16/update→ ID =16Paste this into Limited Carrier IDs in Returnflows
(comma-separated for multiple)
📦 Create a Shipping Option
Once connected, you can now create shipping options just like in the Shipmondo flow:
Enter name and description
Select Webshipper Carrier
Select Returnflows Carrier
Choose service
Enable labelless (if supported)
Choose draft or active
🙋 Need help?
Not sure how to set it up? Want to use Webshipper across different stores or contracts?
💬 Chat with us – we’ll help you connect and go live.