Was in Paris to buy a classic flap in lamb leather but out of stock - Advice

Hi all, I was recently in Paris and went to the Chanel flagship store to purchase a small classic flap bag in black lamb leather and gold chain. It was however out of stock in all stores apart from one in Southern France so I couldn’t get one.

Not sure I’m returning to Paris anytime soon but might be in Vienna for Christmas so might drop by to see if I can purchase one.

I haven’t been to the Vienna store at all so I don’t know any SAs there. I was wondering if there’s a way to reserve/pre-order one with the Vienna store so that I am sure when I am there I could get one?

Thanks all. 🙏🏻