Tracking confusion around invite error messages for deactivated invitees

Issue Summary

When attempting to invite a user to a site, there are several circumstances in which the invite will fail and the admin will be shown an ambiguous error message:

Error 1: 

Unable to send invites We were unable to send any invites because one or more accounts you invited are deactivated. Remove these accounts from your invite and try again.

Error 2:
 

We're unable to invite users
At least one user has an account that is deactivated or suspended. Only an organization admin can restore their access. If the account doesn't exist in your organization, contact support.

Note that the copy was updated in a bug here: ID-8211 , but this still causes confusion as the customer doesn't know who's deactivated and why

Error 3: Similar to error 2 
 

We're unable to invite users
At least one user has an account that is deactivated or suspended. Restore their access or remove this account and try again.

 
These errors have generated a large number of community posts and Support tickets. 

Expected Results

A clear explanation of which user cannot be invited, and guidance on what to do next.

Actual Results

Generic error message without indication of which user is at fault (in the case of a multi user invite) or what steps are required to fix the problem.

Workarounds

• Unable to Invite Users (With Managed Accounts) to a New Site
• Enabling a deactivated account to provide site-access
• If the above two articles don't help, we recommend creating a Support Ticket with us. Thank you!
• For error 3, check the status of the account and if all are active then check if they appear on the users management, it is likely they will appear but will not have access. The solution for this is to grant site access from the user profile instead of inviting them. 

Notes

Invite errors that are tracked elsewhere:

• ID-8215 – The UI message "This account is deactivated <name> no longer has access to Atlassian account services. Their account was deactivated by Atlassian" is sometimes shown incorrectly
• ID-7650 – Inviting existing users should show an error message
• ID-8261 – User management default "Active" filter causes confusion