Once you’re logged in to SharePoint, you’ll be able to use Wrike’s proofing and approvals features. These features are currently available for PDFs and images attached to Wrike tasks from SharePoint.
If you don’t have the proofing feature as an add-on or as part of Wrike for Marketers, you’ll be able to preview SharePoint images and PDF files within your tasks and projects. Currently, guest reviewers are not supported for proofing and approvals of SharePoint documents in Wrike.