Because the term "EUP Key" is vague, the acquisition method depends on your role.
Most servers rely on a separate script for badges (like a nameplate on the chest).
A common annoyance in FiveM is taking off a uniform and being left in underwear or a default ugly ped.
Once you secure a legitimate FiveM EUP Key, follow these best practices:
Instead of spawning a uniform and then manually spawning a gun, taser, and flashlight:
If you want, I can: