Do you get any orders in the response, if so, are there really more than 100 orders matching the created_at_min constraint? Make sure you pass status=any to get all orders no matter their status (default is to return only open orders).
Do you get any orders in the response, if so, are there really more than 100 orders matching the created_at_min constraint? Make sure you pass status=any to get all orders no matter their status (default is to return only open orders).