What do you mean by SDK? you want mod support or something like that?
Hey, I want to add an sdk to my android application in UE4 but I don’t find how. Can someone please explain to me how? Thanks. If we can’t, do Unreal Engine developpers are working on it or think about it? Please respond me if you know something. Thank you 
I mean like to add offerwall SDK like Fyber or Whitemobi
I heard that in Unity they have an SDK integration tool.
download it from android studio