I am having issues with 9.3 Import Shipping Metrics. I've tried changing the time dimension in different ways. I changed the time range for the module. I keep getting the same error and I am not sure why. Please see attached.
Edit Action 9.3 and make sure the line items are mapped correctly. The line item in your file for Shipping Time probably isn't spelled the same way in your module.
Change the pivot view and try mapping again, probably this might help!
As your error states "Ensure column headers is mapped to the correct dimensions"