What general loyalty system to choose for an online store + accounting system + retail outlet?

Question

1C-Bitrix

Good afternoon!
We have:
-online store on Bitrix;
-accounting system 1SUPP;
- Frontal Xpos in retail.
The site has set up a bonus system, where bonuses are awarded for orders.
There are also orders by phone and managers place orders in 1Ske.
In the 1C database and retail stores, bonuses, respectively, are not taken into account in any way.
How to set up the exchange of bonuses for clients between 1C Bitrix - 1SUPP (or other accounting system) - Retail.
We are even considering a global transition of retail outlets to 1C: Retail 2 or 1C: UT, but we have not found anything from ready-made solutions for synchronizing bonuses.

Answer 1

There is a method. A little crutch and provided that the product code (item code) is affixed everywhere and the same everywhere.
On the site side, make a simple web service that accepts a client ID and a list of product codes with an indication of their quantity as input.
For example:

{
  user_id : 123,
  product : [
        {
          product_id : 234,
          count : 1
        },
        {
          product_id : 345,
          count : 3
        },
        {
          product_id : 456,
          count : 2
        },
        {
          product_id : 567,
          count : 1
        },
  ]
}

And in response, it returns their cost, and on the basis of these data, the cost is affixed to 1SUPP.