I was in embassy store and bought the "+1 active duty officer assignment slot." Because it says "active duty officer" I thought I was buying another slot to assign my doffs to active duty. Instead I got an extra mission slot.
I had checked the item info for more details, but there was none. I wondered if it was consumable, as it was in the consumables store, and wanted to make sure it was what I thought it was, but there are no details in the item info.
Renaming item to "+1 duty officer missions assignments" or similar would fix most of the confusion.