Today i installed call of duty warzone on my pc and linked the battle.net account to my former ps4 account. I bought modern warfare on the ps4 for 60 euro and it's the same account, but it still tells me that I have to buy modern warfare on the pc for 60 euro. Why do I have to buy modern warfare again now, and why has it not already been bought, as I said, I spent 60 euro on the ps4 for the same account?
Unfortunately I do not know
Because you bought a license to use the PS4, not the PC.
It is generally unusual for software that when you buy a license you are automatically issued a license for any other existing platform.
