Asendia USA

Updated March 10, 2025 21:50

Asendia USA (an alliance between La Poste and Swiss Post) is the largest international mail consolidation service for USPS. Asendia is available to US-based ShipStation accounts. They offer discounts on USPS international services, support labels with special characters, and automatically close End of Day forms. ShipStation's integration with Asendia USA allows you to create international shipping labels destined for anywhere in their extensive delivery network.

Available on Platinum Plan or Higher

To connect this provider, you must be on a Platinum or higher subscription plan. If you would like to add this provider but do not see the connection tile, you will need to upgrade your subscription to the Platinum plan.

Asendia USA Requirements

Connection Requirements:

A US-based ShipStation account
An active account with Asendia
Username and Password
API Key
Account Number
Sub Account Number (if needed)
Processing Location

Connect an Asendia account to ShipStation

To connect your Asendia account to ShipStation:

🇺🇸 🇨🇦 Your Carriers Add-On

For US- and Canada-based ShipStation accounts, certain plans will require you to enable the Your Carriers add-on before you can connect your carrier accounts. If you have not yet enabled it, you'll be prompted to do so before you can connect your accounts.

Go to Account Settings.
Select Shipping, then choose Carriers from the sidebar.
Click the Your Carrier Accounts tab.
Click the Add Carrier button.
Select Asendia and click Connect.
Enter your Asendia Username and Password, API Key , Asendia Account Number and Sub Account Number (if needed), and select the Processing Location in ShipStation.
Click Connect.

Available Features for Asendia USA

ShipStation's integration with Asendia supports the following standard features:

Feature	Supported?
Domestic Shipping
International Shipping
Electronic Customs Submission
Return Labels
Estimated Rates
Carrier Insurance
Tracking
End of Day (Electronic)
End of Day (PDF)
Label Branding
Label Messages
Multi-package Shipping
Multiple Accounts

Available Services, Packages, & Confirmation Types

Asendia Domestic Services

Asendia Domestic Bound Printer Matter Expedited
Asendia Domestic Flats Expedited
Asendia Domestic Flats Ground
Asendia Domestic Parcel Ground Over 1lb
Asendia Domestic Parcel Ground Under 1lb
Asendia Domestic Parcel MAX Over 1lb
Asendia Domestic Parcel MAX Under 1lb
Asendia Domestic Parcel Over 1lb Expedited
Asendia Domestic Parcel Under 1lb Expedited
Asendia Domestic Promo Parcel Expedited
Asendia Domestic Promo Parcel Ground
e-PAQ Returns Domestic

Asendia International Services

Asendia Priority Tracked
Asendia International Express
Asendia IPA
Asendia ISAL ISL
Asendia PMI PA2
Asendia PMEI EXP
Asendia ePacket
Asendia Other A01

Business Mail Canada Lettermail Machineable
Business Mail Canada Lettermail
Business Mail Economy LP Wholesale
Business Mail Economy SP Wholesale
Business Mail Economy
Business Mail IPA
Business Mail ISAL
Business Mail Priority LP Wholesale
Business Mail Priority SP Wholesale
Business Mail Priority

e-PAQ Elite Custom
e-PAQ Elite DDP Oversized
e-PAQ Elite DDP
e-PAQ Elite Direct Access Canada DDP
e-PAQ Elite DPD
e-PAQ Elite Oversized
e-PAQ Elite
e-PAQ Elite Direct Access Canada DDP Returns
e-PAQ Elite Direct Access Canada DDP Undeliverable
e-PAQ Elite DDP eSW Fluency
e-PAQ Elite DDP eSW Fluency DG

e-PAQ Plus Custom
e-PAQ Plus DAP
e-PAQ Plus DDP
e-PAQ Plus Economy
e-PAQ Plus ePacket Canada Customs PrePaid
e-PAQ Plus ePacket Canada DDP
e-PAQ Plus ePacket
e-PAQ Plus Wholesale
e-PAQ Plus

e-PAQ Returns International
e-PAQ Returns Internal

e-PAQ Select Custom
e-PAQ Select DDP Direct Access
e-PAQ Select DDP
e-PAQ Select Direct Access Canada DDP
e-PAQ Select Direct Access
e-PAQ Select Economy
e-PAQ Select Oversized DDP
e-PAQ Select Oversized
e-Paq Select PMEI Non Presort
e-PAQ Select PMEI PC Postage
e-PAQ Select PMEI
e-PAQ Select PMI Canada Customs Prepaid
e-PAQ Select PMI Canada DDP
e-PAQ Select PMI Non Presort
e-PAQ Select PMI PC Postage
e-PAQ Select PMI
e-PAQ Select
e-PAQ Select DG
e-PAQ Select Direct Access Canada DDP Undeliverable
e-PAQ Select Direct Access Returns
e-PAQ Select Direct Access Undeliverable
e-PAQ Select Canada Fulfillment
e-PAQ Select DDP DG
e-PAQ Select DDP Direct Access Returns
e-PAQ Select DDP Direct Access Undeliverable
e-PAQ Select Direct Access Canada DDP Returns
e-PAQ Select Direct Access Intra Canada DDP
e-PAQ Select Mailbox Plus DDP
e-PAQ Select Pre Processed Canada DDP
e-PAQ Select Reverse Direct To Export
e-PAQ Select Customs Prepaid By Shopper
e-PAQ Select PMEI Customs Prepaid

e-PAQ Standard Custom
e-PAQ Standard IPA
e-PAQ Standard ISAL
e-PAQ Standard
e-PAQ Standard Books

Marketing Mail Canada Personalized LCP
Marketing Mail Canada Personalized Machineable
Marketing Mail Canada Personalized NDG
Marketing Mail Economy
Marketing Mail IPA
Marketing Mail ISAL
Marketing Mail Priority

Publications Canada LCP
Publications Canada NDG
Publications Economy
Publications IPA
Publications ISAL
Publications Priority

Asendia Package Types

Package
Custom Packages

Asendia Confirmation Options

Delivery

Asendia USA Additional Features

ShipStation's integration with Asendia allows the following additional features:

Feature	Description
Dangerous Goods	Asendia USA accepts shipments of dangerous goods.
Automatic Manifesting	ShipStation will automatically manifest all open shipments for the previous day at 2 am PST. Note This setting can be disabled if you contact ShipStation support. If disabled, you will be responsible for manifesting your Asendia shipments.
Support for Special and Foreign Characters	Asendia supports special and foreign characters on their shipping labels. Asendia will relabel shipments at their facility if the characters do not meet the standards of their delivery partners.

Asendia USA Troubleshooting Tips

Here are some common issues, potential causes, and troubleshooting tips.

Issue	How to Troubleshoot or Resolve
Error: Length exceeds maximum allowed; Name XLI_ItemCode; Length Allowed: 25	What it means: This error message occurs if the SKU for any product in the order is greater than 25 characters. For manual orders, you can edit the product in the order so that the SKU is less than 25 characters. If this is a marketplace order, you will need to either: What to do: Create a manual order and ship the manual order using Asendia, then use the Mark as Shipped action to update the marketplace order with the tracking information. Use the Rate Calculator to create an Asendia shipping label, then use the Mark as Shipped action to update the marketplace order with the tracking information. Whichever option you choose, we also recommend you update your product SKU number to be less than 25 characters and prevent the error from occurring on future shipments.

Issue

How to Troubleshoot or Resolve

Error: Length exceeds maximum allowed; Name XLI_ItemCode; Length Allowed: 25

What it means: This error message occurs if the SKU for any product in the order is greater than 25 characters. For manual orders, you can edit the product in the order so that the SKU is less than 25 characters. If this is a marketplace order, you will need to either:

What to do:

Create a manual order and ship the manual order using Asendia, then use the Mark as Shipped action to update the marketplace order with the tracking information.
Use the Rate Calculator to create an Asendia shipping label, then use the Mark as Shipped action to update the marketplace order with the tracking information.

Whichever option you choose, we also recommend you update your product SKU number to be less than 25 characters and prevent the error from occurring on future shipments.