Following this guide here: https://shopify.dev/docs/themes/pricing-payments/purchase-options/support-purchase-options#the-selling-plan-selector-on-the-product-page
How is the selling_plan_allocation object created?
After creating a selling plan group, selecting a selling plan on the product page adding it to the cart, “selling_plan_allocation” returns nil when I update cart.liquid with the following.
{% line_item.selling_plan_allocation %}
Is there anything else I should be doing/assigning on the product liquid page when selecting a selling plan?