Creating Automated order sequence

we have a program where if you order Product A you get a free follow up order of Product B and then Product C. These are separated by 20ish days. Looking to see if anyone knows of a way to build in Shopify Flow or if you know of a separate app. Tried with Recharge and won’t work since we are doing it from an API to create the order. Subscriptions must go through Shopify checkout

Flow by itself only can add Line item to an existing order.

Though there are apps, like “Order Editing” or “Cleverific Order Editing” which can create/duplicate/edit orders and Shopify can use their actions.

This is not quite correct. Flow has a Send Admin API request that can call almost any mutation. So you could create a new order in Flow. It would be pretty involved…I think you need to create a draft order, add the line items, and then convert it to an order. And you have to do that for each new order.