Problem buying drones

Hi,
I bought new drones but I can’t transfer them in my ship.
How to ?

Thanks
(forgive my english, I’am french)

Your ship may not have a drone bay.

You can put drones in the cargo for transport, but this way they are not deployable.
To use drones in combat, they have to be put into the drone bay, which is smaller or even non-existent (depending on the ship).