How to connect an online cash register to an online store and add the function of sending a check on the spot to couriers in the application?

Question

1C-Bitrix

Hi all. We want to connect one online cash register to an online store (cms Bitrix) and add a button for sending a check to a client in their application for couriers. Those. the order was placed, some adjustments were made during its assembly (remove or replace something), the order was delivered, some adjustments were made again when the order was issued (if something needs to be removed from the order), the order was transferred, payment in cash or accepted by a bank card through the terminals, after which the courier in the application clicks "Send a check" (the request is received at one cash desk and a check is sent to the person by phone or mail).
How to implement it? Someone faced?
Please, people shouting "you can't do this, because the courier must take the cash register with him and print the check on the spot, the client has the right to request a paper version" - read the law correctly. It clearly states that when a person provides a phone or mail, you can NOT issue a paper version of the check.

Answer 1

The courier has an application (more precisely, a Bitrix admin mini-site), in which he edits the order, after all the manipulations and accepting payment from the person, he clicks "Order delivered" in the same application, therefore the person is sent a check by mail or by SMS

Since you have Bitrix, there is a solution for it
https://habrahabr.ru/company/bitrix/blog/321818/
https://kassy54fz.ru/