An Post Onboarding Requirements and Configuration Guides [Information]

Last updated: September 29, 2026

This article serves as the central hub for integrating An Post with techSHIP. It details the necessary credentials for onboarding, explains the configuration hierarchy required to start shipping, and outlines operational constraints specific to this carrier.

   

   

   

  

To review all supported carriers and their specific requirements, see: techSHIP supported Carriers - Master List [Guides List].

   

   

TABLE OF CONTENTS



Onboarding Requirements



Before configuring An Post in techSHIP, you must gather the connection credential and confirm the minimum shipment data required by the carrier.



Information to be Provided



The following items must be available before starting the setup:

     

DATA ELEMENTSOURCE (HOW TO OBTAIN)
Access KeyProvided for the carrier connection and entered in the Baseline Account
Ship-from Required DataName, Address1, City, PostalCode, and Country
Ship-to Required Data
Name, Address1, City, PostalCode, and Country

   

Settings to be Verified



The following configurations must be completed before shipments can be processed:

   

FEATURE/SETTINGVALIDATION ACTION
Baseline AccountConfirm the Access Key is entered and the mandatory sender address fields are completed
Billing AccountConfirm Service code, Package type, and Currency are selected before processing shipments

   

Configuration Hierarchy and Guides



To establish a valid connection and start shipping, you must complete the mandatory levels in the following order: 



Gather Onboarding Requirements  ➔

Carrier Baseline Account ➔

Client (Billing) 
Account 



Use the table below to access the detailed configuration guides for each level:

   

LEVELCOMPONENTMANDATORYSCOPEDESCRIPTIONCONFIGURATION GUIDE
1Onboarding Requirements
RequirementsYou are here.
2Baseline Account
CarrierEstablishes the core technical connection. Must be created first.
3(Billing) Account
ClientConnects a specific client to the Baseline. At least one is required to ship.

   

Labels



The following table summarizes document support specific to this carrier:

    

ITEMSUPPORTED
Label
Supported
Customs Declaration
Supported
References
Supported
BOL
Not supported

   

For international shipments, An Post generates a Customs Declaration in addition to the shipping label. Label References are supported for this carrier. BOL does not apply to this carrier.

   

CONSTRAINT TYPELIMIT/REQUIREMENT
Max. References Supported2 References
Character LimitTBD

   

   

   

  

For a comprehensive guide on how to use label references, see: Using order References in your labels [Step-by-Step guide].

   

   

Operational Constraints



This section details specific operational rules and limitations imposed by An Post. These constraints are enforced by the carrier and must be considered when planning your shipping workflow:

  • An Post does not provide a rate API.
  • Rates must be maintained using predefined rate tables configured in techSHIP.
  • Rate Shopping is not available for this carrier.
  • Customs Declaration documentation is generated only for international shipments.