How do you handle product variants?
If you need to track different variations (size and color) of your product, you'll need to create a separate product record for each one. This way, you can assign a unique product name/SKU to each variation and use the product category or a custom field to link them all together.
How many product variants are there in Shopify?
Product Variants Reloaded - Upto 1,000 REAL Variants and 6 REAL Options per product | Shopify App Store.