I’m Melissa, a Shopify Guru. Thanks for posting
I have checked this out for you and while it would not be currently possible to do what you described automatically with Shopify 'out of the box', you can certainly add that feature to your site using an app. One app I found that may work well for adding this function to your store would be Sale All in One by Saio. This app allows you to schedule sales and to automatically add start and end sales on selected dates.
Hope this information helps! You can reach out to the Guru team https://docs.shopify.com/support if you have any questions.
Have a great day!
Melissa | Shopify Guru
This app only lets you offer a fixed amount or product off a group of products.
I need to individually mark down items select items for a period of 2 weeks or a month depending on the sale the manufacture is having. Unfortunately it's not always a fixed percentage or dollar amount.
Normal Price: $224.39
Sale Price: $192.39
Normal price: $272.99
Sale Price: $227.49
Normal Price: $517.39
Sale Price: $415.99
I fully understand your thoughts on that. It's sounds like a nightmare if you talk about store sale with hundreds of products. That's why you can try the following apps to automate this process:
I really hope that's what you are looking for.
Instant Bulk Discount & Sales app allows you to schedule sales for any period of time. Unlike other discount apps, it allows schedule sales even for a product variant. You can set up discount in percentage, amount or set a new price for the product, variant, collection. Besides that, this is the only discount app that applies discounts for thousands of products in just 10 seconds!
I know the thread is old but I recently developed an app for this purpose: "Ahia! - Easy Price Changer".
You can find it here: https://apps.shopify.com/ahia-easy-price-changer
You can do a lot of things with it:
A lot of new features are being developed and will be released soon.