How can I move existing subscriptions from duplicate test products to the original products after completing a pricing test, allowing for archiving the test products?
Use the bulk swap feature to replace the test products with the original products. Use the "Upcoming Products" report to find the variant IDs of the test products, edit the titles of the test products to differentiate them, and then perform the bulk swap, one product at a time, to ensure accuracy. The bulk swap feature will update the price, shipping, and discounts to match the original product.
More details on using the bulk swap feature can be found here: https://support.boldcommerce.com/hc/en-us/articles/23991658742804-Bulk-Product-Swap-in-Subscriptions-for-Shopify-Checkout.