Help using editor

Hi, I have dl'd the 2021 editor and can change things in the editor but it does not change anything in my game. I have never used an editor before so don't really know what I am doing....
I even purchased the £5.99 licence for it to see if that helps, but it didn't. When I click save in the editor it says I have to purchase the licence, which I have, but it still says the same. Please help, getting rather frustrated!!! Thank you

i have the same problem

The Official FM21 Advanced Editor isn't out yet, and won't be until the 24th, so I highly doubt you purchased it. And if you did... Well, you got scammed :-)

If you're referring to the FMSE21 Editor, then this is the wrong part of the forum, so to the part dedicated to it :-)