How to automatically add a row ID to an Excel spreadsheet (Google Spreadsheets)?

Question

Spreadsheets

I am making a bot for a "cart", and when a new user is authorized, a line is automatically added to the Google table (I use it as a database).
Tell me how to automatically add the row ID to a separate column. Shown more in the screenshot.

Thanks in advance!

Answer 1

=ROW()
insert into the cell and get the result

Answer 2

=SEQUENCE(w;x;y;z)