It depend of which content you'd like to import from Sharepoint. If it's Word documents, you can use this documentation. If you want to bulk import files, I would recommand to use webdav for Confluence.
Finally, for supported solution, you can try this add-on, but I'm not sure of which type Sharepoint pages are - I think it was HTML but I guess you know better than me.
If you really want to use the UWC, here is a workaround - it's not supported by Atlassian, I just tried to figure out a solution :
I don't know which version of Confluence server you currently have but the UWC only works with previous versions than the current one. The workaround/advice I can give you regarding UWC would be to download a previous version of Confluence here , most likely less than 4.3.7 as written on this archive. You can generate an evaluation license or a developer license to use it.
Then, you can implement the UWC and migrate.
Once it's done, you will be able to upgrade, export in XML and import the content in your current Confluence instance.
I hope it helps,
I work for Communardo Software GmbH. Last year, our company assumed ownership of the SharePoint Connector for Confluence from Atlassian. As a Platinum Atlassian Solution Partner, we're big fans of Confluence. But we also know that SharePoint is a great document management system, and it can be difficult to get loyal users to migrate to a new platform. That's why I wanted to let you know that there's an alternative to migration. With the SharePoint Connector for Confluence (also available for SharePoint Online), you're able to embed SharePoint lists, documents, calendars and more directly into Confluence page. Likewise, you can embed Confluence pages and content into SharePoint. This integration effectively bridges the gap between the two systems, enabling your teams to work as one using whichever system they prefer. If you think this might be a good solution for you, I invite you to sign up for a free 30-day trial via the Atlassian Marketplace.
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