Troubleshoot label generation errors

AfterShip Returns Center is an automated, self-service portal designed to deliver a streamlined returns experience to shoppers. You can connect a Postmen account to the Returns Center and print labels with just a few clicks.

Error: data.shipment.ship_from.country is a required property

To generate labels successfully, the ship_from country must be specified for each return request.

Steps to fix the error 

  1. Open order details in your store > Edit shipping address > Specify country in the shipping address 
  2. Print label again

Error: data.shipment.ship_from.phone is required for this request

This error occurs when a customer’s phone number is not mentioned in contact details. For some couriers, this is a necessary field.

Steps to fix the error 

  1. Open order details in your store > Edit customer’s contact information > Add a phone number 
  2. Print label again

Error: data.shipment.ship_to.state should NOT be shorter than 1 character

Steps to fix the error 

  1. Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Specify state
  2. Print label again

Error: 121100 The requested service is invalid for the shipment origin

This error occurs when a particular service is not supported for a shipping address. 

Steps to fix the error 

  1. Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another service
  2. Print label again

Alternatively, you can visit Courier’s official website and check if the service is supported.

Errors specific to USPS

Error: 120213: ShipTo PhoneNumber must be at least 10 alphanumeric characters

Steps to fix the error 

  1. Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Enter phone number
  2. Print label again

Error: 120309: Missing or invalid ship from phone number

This error occurs when a customer’s phone number is not mentioned in the contact details or is incorrect. 

Steps to fix the error 

  1. Open order details in your store > Edit customer’s contact information > Add a phone number
  2. Print label again

Error: 121210: The selected service is not available from the origin to destination

This error occurs when a service is not available for a particular return request. 

Steps to fix the error 

  1. Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another service
  2. Print label again

Alternatively, you can visit Courier’s official website and check if the service is supported.

Error: 120121: The Shipper’s shipper number cannot be used for the shipment

This error occurs due to incorrect details entered while setting up a Postmen account.

Steps to fix the error 

  1. Ensure the following requirements are fulfilled:

You have a Postmen USPS Shipper Account

 The ship-to address for the order is US

Error: 121501: The selected packaging is not valid with the requested accessory option

Steps to fix the error 

  1. Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another Package
  2. Print label again
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