How do I get my customers in the Reporter field (user table?) without inviting them?

[Michael Byrne]

Currently in Jira Server, I have all our customers set up in the User Table, with an email address of 'CustomerName@mycompanyemail.com'.

We set it up this way so we know what customer has the issue reporter.

How do I do this in Jira Cloud?

My customers do not have access to Jira, but I want them listed in the Reporter field.