The ticket checkers can be strict, and then you have to appeal a fine. [I have never been fined anywhere, but I know the process.] With the in-app tickets they can and sometimes do make a fuss even about when the ticket was activated. So if you activate the ticket after the train’s scheduled departure time from Hyllie to CPH, it’s been like a 1500 SEK fine this fall. I laughed when a couple of Swedish justice ministry employees got fined on the bridge because they activated the tickets 2 minutes after the departure from Hyllie and got fined for not having a valid activated ticket before train left Hyllie for CPH. One of them appealed and got a substantial reduction in the fine, but it was still a fine.Har gjort det förr och är de försenade så är det Skånetrafiken som är skyldiga mig pengar(?).