To be honest, i never tried before but i found out this article for you:
You can add members to boards even if they are not already using Trello. Just enter the person's email address and click "Send invitation." The user's permission level will be considered " Virtual" until they join Trello, but you can still add the user to cards.
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. In this video, I'll share my favorite Trello templates. Templates mentioned in ...
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