ProgramType Enum eBay Docs

An enumerated type defining the supported seller programs.

Value	Description
OUT_OF_STOCK_CONTROL	If a seller's account is opted in to the out-of-stock control program, active fixed-price listings will be kept 'alive' (but not surfaced in search results) even when the quantity for the listing has been depleted to 0. This feature allows the seller to update/revise the listing with more quantity, and prevents the seller from having to relist the item.
PARTNER_MOTORS_DEALER	The Partner Motors Program that sellers can participate in by opting-in to the program. Sellers must be registered business users to opt-in to this program.
SELLING_POLICY_MANAGEMENT	If a seller's account is opted in to this program, sellers can associate business policies (payment, return policy, fulfillment) to their listings. Being opted in to business policies is a requirement for using the Inventory API.

Example

use Rat\eBaySDK\Enums\ProgramType;

ProgramType::OUT_OF_STOCK_CONTROL;