Can you leave a window on the back wall of the shop, and will it affect the wealth?

what did the shop look like? If it didn't. There will be no more. Don't change it at will. If there is one, why not? If you think it will affect your Feng Shui, you can hang a picture or something else. It's not impossible to stop him. I think Liu Changzi's purpose is lighting and ventilation. There is nothing particular about feng shui, if you think that window was lost by Liu Cai. Then you can seal it and block it with something. It's not impossible to block it, so the key is to look at yourself. As long as there is no doubt in your mind, and your shop income is good. There is nothing. Don't worry about this any more. After all, as long as you can run your shop, what should you rely on? Depending on the quality of products, your marketing methods and your service attitude, if your service attitude is not good, even if there are windows behind, the feng shui will affect you. It is also very big, if you have a good attitude, even if there is no window or glass in the back. You still make money, so the key is how you run your own business, not what feng shui is.