Is it possible to implement uploading in xml according to the required criteria from Bitrix?

Question

1C-Bitrix

Hello. There is such a task - it is in the title.
The site has a personal account for a certain group of users who have their own catalog, their own basket, control panel, etc. + own admin who manages all processes. Now I need to implement the ability for the administrator to upload completed orders by month + only those orders in which the goods belong to a specific manufacturer. All this should work in LK.
Please point to the correct solution.

Answer 1

The solution is ready, there is no direct under your description.
Export of orders is in the admin panel under the gear on the right.
If you need implementation in the public part of the site in your account, then you need to write.
1. We make a form with a choice of manufacturer and a filter by date.
2. When sending it, we write a script that receives a list of orders.
3. Add either subqery to the filter to receive orders with goods with a certain brand
, or after receiving a list of orders, we check the goods and select only those with the desired brand.
(it all depends on the number of orders, iterative processing may be required)
4. We have collected an array with orders, now we are generating xml