I just asked another question on my story thread. Maybe it should go here, but I don't know how to move it.
My question was basically whether or not it is enough to play the challenge without CC, or do you actually have to delete it from your system? I think it's an important question, because if it has to be deleted from your system it will disqualify a lot of people from playing ranked challenges too.
I have this same question

since the issue came up with my dynasty too.
And I guess I'm also wondering...why is CC disqualified exactly? I guess I can understand the banning of core game mods that alter the difficulty of a game, but if one is just using an outfit or a hairstyle that doesn't alter difficulty at all...isn't that just something visual and not any sort of game advantage? And I'm sure then this means no custom skintones or eyes or hairstyles or outfits or any of that? It just seems a bit odd to me that if we can already design our sims to look any way we like (instead of having to randomize them or some such) with the content already in the game, that custom content that merely alters more ways to design how our sims look would be banned. Sorry if I sound rude; it's certainly not my intent.
Contemplating if I want to restart my dynasty so I can make the hall of fame in this case

oh, and a double check: are any store items (since they're "official") okay then? What about the Dr. Pepper promotional items?
Edit: I guess in case "some" CC is deemed okay, I'll just list all that I'm using, to double check what's okay and what isn't (it may all be banned, but I guess I'm not certain if the absolute ruling has been made yet, due to discussion over in simfulicious' thread).
In the Enmei Dynasty, my sims have been made with custom eye replacements and custom skintones. They also use CC blush, lipstick, eyeshadow, hairstyles, and clothing. None of these alter game difficulty.
My thanks for your response.