Error 1022026ΒΆ

[{
    "errorCode": "1022026",
    "message": "The Service or at least one of the included special services must be trackable.",
    "additionalInfo": "The Mail Service or at least one of the included special services must be trackable."
}]

This error can happen if you have not included a trackable service. Services that are not trackable include Priority Mail (PM) and First-Class Mail (FCM), among others.

As a solution, add at least one trackable special service, such as Delivery Confirmation (DelCon). Delivery Confirmation is a no-charge special service that triggers tracking but does not increase the cost of the shipment.

To add the DelCon, include the following in the rates array when creating a shipment:

"specialServices": [ {
    "specialServiceId": "DelCon",
    "inputParameters": [ {
        "name": "INPUT_VALUE",
        "value": "0"
    } ]
} ]

For an example of a complete shipment request that includes DelCon, see the Sample Request on the Create a USPS Shipment page.


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