In this step, you will verify whether the player has any purchases awaiting consumption. It is best to perform this check after the onInitialized trigger, which allows you to validate the purchase and complete the process. You can also decide where and when to trigger this method based on your requirements. 
bridge.getNonConsumedOrders(customerId: String)
This method returns an array of strings, each representing a different order ID. These IDs correspond to completed purchases that are awaiting consumption. You can then initiate a “Purchase Consume” for any order as needed.