Re: Product code won’t work for MacOS on launch
@r34rdon_821 The reason I asked for screenshots is that I wanted to know where exactly you were running into trouble. This is the way it's supposed to work:
You download the base game (or a pack), then when it's done, you click Install. You get a screen with the product code showing:
What I did here was use cmd-C to copy the 20-character code, blacked out in the above screenshot. Then after I clicked Install and got through the first few screens, the installer asked me for the code:
I put my cursor in the first box and used cmd-V to paste the code. When I clicked Continue, it worked. Is this where you kept getting asked for a code over and over? If so, please make sure you're using the code that corresponds to the content you're installing. Each pack has its own code, of course, and you need to use that, not the base game code. In the above screenshot, where it says "The Sims 3™ Registration," it will say the name of the pack you're installing, so you'll know which code to use.
If this isn't the part of the process that's asking you for a code, please tell me where it's happening, and take a screenshot of the message. As I said, this might be a new error, although I've installed TS3 into Mojave several times without any issues. My codes are also from Steam, by the way.