Risk of load testing my store during Trial period

Hello everyone !

We are currently working on a shopify store with handmade theme and on our todo-list we got a pretty heavy testing task.

The store is not open yet so we are reduced to testing mode only.
We need to execute this 5 command and as much as possible in a very short time frame :

  1. Create order information (financial_status is “paid”)
    POST /admin/api/2022-04/orders.json
  2. Create fulfillment information
    POST /orders/${orderId}/fulfillments.json
  3. Tracking number registration
    POST /fulfillments/${fulfillmentId}/update_tracking.json
  4. Fulfillment complete
    POST /orders/${order_id}/fulfillments/${fulfillment_id}/complete.json

So it create an order and fulfill it( around 1000 time in a minute ).

We already locked before our store do the the incorrect use of our bogus gateway.

I feel I am unlocking an open door but.. do we risk to lock or break anything with this kind of operation?