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
Open order details in your store > Edit shipping address > Specify country in the shipping address
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
Open order details in your store > Edit customer’s contact information > Add a phone number
Print label again
❗ Error: data.shipment.ship_to.state should NOT be shorter than 1 character
✅ Steps to fix the error
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Specify state
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
Go to Returns methods Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another service
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
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Enter phone number
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
Open order details in your store > Edit customer’s contact information > Add a phone number
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
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another service
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
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
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another Package
Print label again
❗ 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
Open order details in your store > Edit shipping address > Specify country in the shipping address
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
Open order details in your store > Edit customer’s contact information > Add a phone number
Print label again
❗ Error: data.shipment.ship_to.state should NOT be shorter than 1 character
✅ Steps to fix the error
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Specify state
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
Go to Returns methods Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another service
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
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Enter phone number
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
Open order details in your store > Edit customer’s contact information > Add a phone number
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
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another service
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
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
Go to Returns methods > Edit methods for the desired zone> Ship with a returns label > Postmen connection > Edit details > Select another Package
Print label again