Special Service Errors¶
If you receive an error that a special service
is unsupported or incompatible,
has an incorrect or missing value,
or requires a pre-requisite,
PB Expedited (USPS) shipments only:
You can use the Carrier Rules API to retrieve the requirements for using the special service. In the Carrier Rules response, locate the combination of service and parcel type you would like to use and then locate the special service.
The Carrier Rules define the following for a special service:
Compatible parcel types.
Compatibility with other special services.
Allowed and required input parameters. For more information on input parameters, see How do I know the input parameters for a USPS special service?
For more information, see PB Expedited Special Services.