How can I integrate the Bold Subscriptions "Express Add-On" widget into my Shopify store using a custom Liquid template and block-based product page?
The Express Add-Ons widget is only compatible with Shopify Online Store 2.0 themes. Custom Liquid templates, which do not support sections and blocks required by the widget, will prevent it from rendering. To use this feature, you must switch to a Shopify Online Store 2.0 theme.