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How to Update a Report theme via Power BI REST APIs
tldr; How can I update report theme via REST API? I have a set of reports residing in muliple workspaces. Each workspace has a custom theme for the reports (set in Power BI Desktop manually). ...
You can't do that, but you can upload reports/datasets into workspaces via the API. Apply the theme to a local pbix and then upload that.
why not helpful? Let the automation tool do its job, even if it means 1000 loops.