Luggage on a regional bus - Blekingetrafik Local traffic

I'm traveling from Kalmar to Copenhagen and looking at sj.se. Most of
the options say that they are not available due to track work. There
is an option to take a regional bus to a different train station
"Blekingetrafik Local traffic" and catch a train there. This is an
example: https://imgur.com/a/GzqxUFy

When are you travelling? There might be options that are not in the database yet if the planning is not done. And those are regional trains and buses with a fixed price so no reason to stress over the tickets. I'm guessing the one change option available involves a bus to Karlskrona and then a train from there. Not a bad option, and if you have some time to spend in Karlskrona that is not a bad option.

Does anyone know how much luggage I can take on the bus portion? I'll
have a smaller (airplane) check in size suitcase plus a carry on size
plus a small backpack. I can't really find what I'll be allowed

I don't think that will be a problem. The rules are not that specific but basically state that you are allowed to bring a reasonable amount of luggage as long as you can handle it yourself.

or even what bus company it is

It says so quite clearly, https://blekingetrafiken.se/

Oh dang. I swear I searched for the bus company and couldn't find it. Thanks! I'll going in several weeks. I figured regional transport won't sell out but I prefer to have things sorted out before I travel.

I can understand the desire to have things sorted out before you arrive, I prefer that too. But this is really nothing to worry about, a noon departure probably won't be crowded.

Thanks Badger. I appreciate your input!

Don't mention it, I hope you have a nice trip!

I think the it is track work between Älmhult and Hässleholm, the connection that is currently missing the train+replacement bus+train alternative, it takes 4h and 45 minutes. Replacement buses are often tourist buses with large luggage compartments reachable from the outside.
The Kalmar-Karlskrona bus is likely a double-decker bus. I think those have very limited space on the upper deck, but a flex area for luggage, strollers, wheelchairs and so on on the lower deck.

Thank you Anders! That's helpful information.