How to display the order change history in 1C Bitrix?

Question

1C-Bitrix

Hello.
The user creates an order on the site, for example, for 1000 rubles. Then the manager calls the client. He persuades the client to buy some more goods, thereby his order increases in value, for example, 1500 rubles. I need to get these two prices. Are there any solutions to this problem?
Maybe Bitrix api has some ready-made functions or where can I find it in the database?

Answer 1

Hang an event on order changes.
If the amount has changed - save the date, the amount and what else you need