The details shared here apply to the most recent versions of our themes. To keep your theme up to date, check out this helpful document.
Up to 100 variants can be created for a product.
Each product can have up to 3 options:
The options can be different from product to product.
For example, one product can use size, color and material, and another product can use material, length and weight.
Variant and option limits can only be increased by installing a third-party application. Alternatively, you could look into editing your theme's code to get custom requirements from your customers with line item properties.