post
https://api.prahsys.com/payments/n1/merchant//order-template//instantiate
Create a real order from a template. The new order is prefilled from the template and assigned a freshly generated ID.
Any pay schedule is copied as inert configuration — start it separately via the pay schedule start endpoint.
Provide an optional order body to override the template's prefilled values (e.g. customers, amount, description) for this order.
