# Design

The Stock Package Shipping UPS Module introduces some new concepts.

## Carrier

When the Stock Package Shipping UPS Module is activated, carrier can be configured to use the “UPS” shipping service. When this configuration is chosen, carrier gains some extra properties like the UPS service type, the label image format and notifications.

See also

The Carrier model is introduced by the Carrier Module.

## UPS Credential

A UPS Credential stores the credentials to communicate with the UPS APIs.

The first matching credential is used for carrier with “UPS” shipping service.

See also

Credentials are found by opening the main menu item:

> Carrier ‣ Configuration ‣ UPS Credentials

## Package Type

When the Stock Package Shipping UPS Module is activated, the UPS code can be defined on the package type.

See also

The Package Type model is introduced by the Stock Package Module.