Advice needed for combining two domains on Shopify and customization for different markets

[Zuschlafen]

Dear Shopify community member,

I hope this message finds you well. I recently started selling my products in the German market and now, I am interested in expanding my business to the Austrian market as well. I have two domains, xxxx.de and xxxxx.at, and I would like to combine them on my Shopify shop.

Could you please advise me on the necessary settings that need to be changed on my Shopify account to achieve this? Moreover, I would like to customize my website in a way that when someone clicks from Austria, they will see a different logo on my website. However, the product descriptions and prices will remain the same.

Thank you in advance for your help.