Information has been added in the Adobe Experience Platform Data Connector section on the data mapping validation error related to privacy management and how to troubleshoot it.
Read more here in detail: Mapping activation
In case you have any questions, please feel free to post them below or reach out through the community Q and A section.
In case you have any ideas and/or suggestions regarding the Campaign Standard product, then kindly submit them here.
Sukrity Wadhwa