Can I convert an existing order into a Subscription order? March 14, 2022 02:51 Updated Follow In order for us to convert and existing order to a Subscription, you will need to call our customer service department. Related articles Can I select my preferred shipping carrier? Clinical Studies Converting One-Time orders to become a Subscription How can I switch my Enroller? Ordering from Modere's websites Comments 0 comments Article is closed for comments.