Royal Mail Developer Guide & API Credentials

This developer guide shows how to access Royal Mail shipping API. See also the list of required API credentials for Royal Mail integration with their Despatch Manager Online (DMO). Labels generated will include Royal Mail's latest 2D barcode and in their latest 4x6 label format. 

Get Royal Mail Developer Credentials

  1. Create a free account at  Royal Mail API developer portal
  2. Click  My Apps tab > Register your application
    Application Name:  Enter account number
    Description: Input "Print my own postage and track shipments" 
  3. After submitted your application, you will receive one set of Royal Mail API credentials for both production and sandbox enviornment: client ID , Client Secret
  4. Click   API Library tab > Select  Shipping API V2 (SOAP) > Subscribe
  5. Royal Mail will take 1-2 weeks to approve your application. Currently Royal Mail is still pending to approve Postmen to 3rd party application. If you have contact with Royal Mail, appreciate you tell them why you need to use Postmen to print Royal Mail labels. Cheers. 

Required Royal Mail API credentials

Credentials Environment Description
account_number Sandbox / Production Your Royal Mail Shipper account number. 
client_id Sandbox / Production API credentials to access sandbox and production environment of Royal Mail shipping API.
client_secret Sandbox / Production API credentials to access sandbox and production environment of Royal Mail shipping API. 
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