I specifically need scrap logistics. I don't even know what this is or how to get it. I've seen it's from caravans but the amount is not going up.

I have a supply agreement with 3 settlements who each have basic power plot, basic water plot, and caravan plot.

I've done a lot to try to get my scrap up to no avail.

I've come to the conclusion its probably a storage issue since all scrap is at 999. I can't find a way to increase storage that doesn't require literal a single piece of scrap logistics more than I supposedly have.

I'd like to avoid using cheats or turning on free build because I like the accomplishment of it all. But I'm nearly at wits end here.