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A shortened version of this URL is inserted into the "template" field {{paymentSelectionPageUrl}} if you included that in the SmsNotificationText for the POST pre-transactions method.
For Vipps and Swish payment you can skip the landing page if you enter(select) ONLY one of them in PaymentProviders and set the flag SkipLandingPage to true (check the checkbox in the sending of the Invoice)
Example SMS:
Thank you for your order. Please click on the link below to choose payment method.
http://pay-core.linkmobility.com/5X6Y7Z
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