We sell the same product but only with different designs. How do we build this. We sell baby body items, customer can choose over 20 rompertjes with a design, customer can select a rompertje with a pre made design, they can change there name or image on this rompertje. How do we manage stock like this? I have 1 rompertje for all the products. See attachment, you see a with rompertje and a pink rompertje this is the same product so have stock for 1 pink rompertje.