How to implement product add-ons based on specific variants or SKU?

@SukhjeetSingh To achieve add-ons based on specific variants or SKUs in Shopify, you can use custom options or create separate products for each variant. Shopify’s native “product add-on” feature is limited to collections. Consider using third-party apps like “Product Options” or “Bold Product Options” for more flexibility in variant-based add-ons.