Hi @Anonymous ,
I think you can achieve the above needs through rest api.
For example, first call the following command via the rest api to get the dataflow information corresponding to the currently created dataflow. Then create a new dataflow based on this dataflow in a new workspace.
The same is true for finding the data source corresponding to a report and then creating the report in another workspace.
related link:Reports - Get Reports - REST API (Power BI Power BI REST APIs) | Microsoft Docs
If the problem is still not resolved, please provide detailed error information and let me know immediately. Looking forward to your reply.
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.