The most common reason traffic sources reports don't populate data is that the Internal URL Filter List isn't defined. To check which Internal URL Filters have been set up on a report suite, follow the steps below:
- Go to Admin > Report Suites.
- Select the report suite from the list of available suites.
- Go to Edit Settings > General > Internal URL Filters.
- Remove the rule listing a period (.) as a filter, and add your own site.
The reason why a period is the default internal URL filter is to allow data to be collected in the Pages report. If hits do not match internal URL filters, all pages come up as Other. A period is always somewhere in the URL, which guarantees the Pages report is populated.