My Flask project takes in orders as `POST` requests from multiple online stores, saves those orders to a database, and forwards the purchase information to a service which delivers the product. Sometimes, the product is not set up in the final service and the request sits in my service's database in an "unresolved" state.

When the product is set up in the final service, I want to kick off a long-running (maybe a minute) process to send all "unresolved" orders to the final service. During this process, will Flask still be able to receive orders from the stores and continue processing as normal? If not, do I need to offload this to a task runner like `rq`?

I'm not worried about speed as much as I am about consistency. The items being purchased are tickets to a live event so as long as the order information is passed along before the event begins, it should make no difference to the customer.