Shortcuts made in BTT inside of Streamdeck software

I'm just starting using BTT, so might be a noob question, sorry.
I'm creating some basic actions inside of BTT with keyboard shortcuts and I'd like to add those to my Streamdeck+.
I'm not using BTT for customizing the Streamdeck, I'm using the regular software from Elgato.
I just want to add a button with the shortcut that I made in BTT. But it doesn't work unfortunately, Streamdeck is still using the shortcut prior to the action made in BTT.
I thought it would be a simple thing to do, but I'm surely missing something here.
Please let me know what I need to do, thanks in advance!