I wonder whether the LinkedIn profile of the customer was directly handed out to the Canonical by MS, because invite by email on LinkedIn cannot send 'custom invite message', Canonical Agent seems to have manually sent an invite with custom message which leaves us with two possibilities -

1. Agent had enough details at hand to confirm that the LinkedIn profile was indeed that of the customer.

2. Access to LinkedIn profile itself (e.g. profile URL).

If 2. how did MS make that association? AFAIK there's no mechanism for the user to connect LinkedIn profile to Azure or vice versa.

P.S. I know MS owns LinkedIn.