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> 🚧 Historical orders
>
> This endpoint should only be used to import historical orders into Voucherify. For on-going synchronization, the <!-- [create order](OpenAPI.json/paths/~1orders/post) -->[create order](ref:create-order) and <!-- [update order](OpenAPI.json/paths/~1orders~1{orderId}/put) -->[update order](ref:update-order) endpoints should be used. This is critical because this endpoint does not store events or launch distributions.
## Limitations
### Import volume
There can be only a single on-going order import per tenant per project at a given time. The user can schedule more imports but those extra imports will be scheduled to run in sequence one by one.
### Maximum count of orders in single import
There is a `2000` limit but we might decide to change it to a lower / higher value at any given time depending if we find this value is too high or too low with time.
## Notifications
There are no notifications on the Dashboard because this import is launched via the API.
## Triggered actions
If you import orders with customers, then a logic will be scheduled responsible for placing these customers into segments and refreshing the segment's summary. Consequently, this update will trigger
- **customers entering into segments**
- **distributions** based on any rules tied to customer entering segment(s)
- **earning rules** based on the customer entering segment(s)
## What is not triggered
1. No webhooks are triggered during the import of orders - for both orders and upserted products / skus.
2. Distributions based on Order Update, Order Paid, Order Created and Order Cancelled. In other words if you have a distribution based on Order Paid and you import an order with a PAID status, the distribution is not going to be triggered.
3. No events are created during the import of orders - for both orders and upserted products / skus. In other words you won't see any events in the Activity tab in the Dashboard such as Order created or Order paid. If you are additionally upserting products / skus, then you won't see the Product created events listed, etc.
4. Earning rules based on Order Paid won't be triggered.
This API request starts a process that affects Voucherify data in bulk.
In case of small jobs (like bulk update) the request is put into a queue and processed once every other bulk request placed in the queue prior to this request is finished. However, when the job takes a longer time (like vouchers generation) then it is processed in small portions in a round-robin fashion. When there is a list of vouchers generation scheduled, then they will all have the IN_PROGRESS status shortly. This way, small jobs added just after scheduling big jobs of the same type will be processed in a short time window.
The result will return the async ID. You can verify the status of your request via this [API request](ref:get-async-action).