I'm setting up products and tier prices in Magento, but I've noticed that a in Simple Product with Custom Options (example: blue t-shirt, red t-shirt), the Tier Price won't work if we combine them to reach the quantity.

Tier Prices seem to work only when the quantity is reached from one product variation, but not a combination of two.

I've read several answers on Stack Overflow and the Magento forums, and they recommend to create configurable products. However this can be pretty hard if a store has lots of products, or lots of variations.

Do you know some workaround to get the Tier Price apply - with a combination of variations?

Thanks,