Hi @Howard Nedd ,
Good day. Welcome to the Atlassian community.
Can you confirm if you are attempting to create a Blog on the Confluence server or Cloud.
I was able to find a Bug and a KB that matches the Error message shared by you.
Can you try the workaround mentioned on the Bug and see if that helps?
We’re excited to introduce external collaboration for Confluence, now available in early access. It is available to preview for Confluence Cloud Premium and Enterprise customers. (If you're not on ...
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