I created a new duplicate and matching rule for Accounts based on Shipping Address so that I can generate a custom duplicate account report. I have the report created but it appears empty and I believe it is because the account records have not been scanned/processed. Is there anything I need to do to trigger that process or is just this a matter of time?
Through some help from another developer I found this documentation: Run Duplicate Jobs in Lightning Experience.
Within Lightning, go to
Setup > Data > Duplicate Management > Duplicate Jobs. Then click the "New Job" button, setup the details and that should begin to process