orderId. You received this orderIdwhen you registered the order in step 4. We have described how to fulfill the order based on different payment methods below.paymentMethod sms is Link Mobility. This means Link Mobility is responsible for processing the payment. A detailed description of processing sms payment is given below.callbackUrl to check if the payment is fulfilled. The parameter fulfillmentStatus is added to the url and GET method is used. The fulfillmentStatus says whether the payment process was successful or failed.credential. The SMS or email contains a link to login. In this link we include returnUrl and errorUrl. The life time of the link is defined in linkLifetime.