How to transfer data on the completion of a goal by a specific user to Analytics?

Question

Google

Hello.
Users register on the site, pay for the service using a receipt, after payment, the site manager manually puts the status paid for this user using a receipt.
Tell me how you can transfer information about the achievement of a goal for a specific user to Google Analytics.
For example: the manager checks the admin panel that this user will pay, and information about the achievement of the goal by this user goes to Google.

Answer 1

It's not very easy, but the Google Measurement Protocol will help you. Here was an interesting article about this:
https://vc.ru/p/gh-data-to-ga