Also note their FAQ:
https://www.sas.se/hjalp-och-kontakt...ps&faq-search=
Q: Vilka regler gäller för ombokning?
A: Du kan boka om bonusresor
upp till 24 timmar före avgång så länge dina poäng inte har gått ut.
Or English:
Q: What are the rules for rebooking?
A: You can rebook award bookings
up to 24 hours before departure, as long as your points have not expired.
SAS is an absolute mess of an airline (really hope AF/KL will clean up now), you can never trust anything they publish. I have zero trust in them.
I would really appreciate replies from people who have experience with this, please don't just quote anything from their website - there's a good chance the info is wrong.