Thanks so much for the feedback and notes @stale-belgium-7295. Indeed, the current support only works with Vault OSS, but great callout about adding namespace support so that we can work with Vault Enterprise as well. I’ve opened https://github.com/pulumi/esc/issues/142 to track adding this support. Should be a simple addition we can address soon and to unblock your testing here!

Thanks! for vault on-prem it's still workable even with vault enterprise because you have control over your root namespace, so you can create your vault auth method at the root namespace level and everything works. But vault HCP doesn't give you access to the root namespace, so it simply doesn't work with it 😞