Apps > Additional Google services > Settings for Early Access Apps > Core Data Access Permissions -> Allow users at your organization to access Google Workspace and Customer Data using Early Access apps.
This doesn't enable Bard per-se, but enables your Workspace for these new AI things, which should include Bard.
I can't access Bard on my domain account due to the existing country limitations (Germany), and I haven't tried over VPN (which I won't try).
Thanks. I couldn't find anything titled "Settings for Early Access Apps" or "Core Data Access Permissions," but I did enable "Early Access Apps" and was told to wait 24 hours, which I guess is a cooling-off period or something, because I can't imagine that could be a caching policy.
And as another commenter predicted, searching the admin console for "Bard" turns up no settings.
I think that simply enabling "Early Access Apps" isn't enough. Once you enabled this, you need to add a checkmark to signal that you "Allow users at your organization to access Google Workspace data and services using Early Access Apps".
In my case enabling these two things was nearly instantaneous, it told me it will take a couple of minutes (located in Germany).
A sibling comment to this one contains the link to the help.
Sorry for not providing the direct link to the setting. Even though my domain name was not in the URL, there was a long number in it which might be personalized (albeit with a very low probability of this being the case).
Thanks for this! I think this is a new setting. If you go into Early Access Apps, you can Allow the Core Data Access Permissions, but it's not clear what this actually enables.
Here is the URL for this and it specifically mentions Bard:
Since the "I'll hurt you if you hurt me first" meme, and Google previously banning one of my own accounts without recourse, I'd recommend to make sure not to hurt the feelings of Bard from a main personal account.
My vanity domain. Now off to find my admin credentials and likely discover that the workspace setting isn't available yet.