It is stated in the forum that
I've checked the luggage information on the website, and the conditions state:
Can I send luggage even if I am not travelling by train?
No. You can only check in luggage and flight luggage if you have a valid ticket for the whole transport route or if you hold one of the following annual travelcards: GA Travelcard, Half Fare Travelcard, Point-to-Point Travelcard, Regional Travelcard, FVP (travel discount for SBB employees), seven25 Travelcard, Modular Travelcard.
In this statement do I need a Swiss Travel Pass / Half Fare Card which is valid from 9-24th of April? And should i buu the consecutive type?