Invites assume user ID will be derived from email address

[techAPJ (Arpit Jalan)]

No, CSV invite lists does not support specifying username, but Invite tokens does support pre-staging username:

Generating lots of Invite Tokens

This plugin is deprecated in favor of Multiple Use Invite Links. You should only use this plugin if you require invited users to land on a specific topic. Summary: Generate multiple invite tokens GitHub: https://github.com/discourse/discourse-invite-tokens Install: Follow the plugin installation guide. Configuration Enable plugin After installing plugin enable site setting invite tokens enabled. Clone Discourse API Gem If you already have Git and Ruby i…