My company uses a Gmail-based email server. For integration with a partner's system I have been asked for my Gmail "user ID", here is what they wrote:
there are usually two emails associated, one should be email@example.com, the other one should be userID@mycorp.jp
Searching the web reveals this question on StackOverflow:
How to get Google User ID something which looks like "1242343543557656", using the GMail address in Android?
QUESTION: As a simple web user, how can I get my ID?
Or is there no such thing?
I could not find it at https://myaccount.google.com