We use built-in SharePoint 2013 Audit Log functionality to track accessed reports and documents. Audit Log reports are mission critical for us.
SharePoint's content viewing report shows some audit log records, however I noticed that some of the requests are missing on the report.
For example; I opened a document with a particular user. Then I expect to see this audit log in the reports but there was no such record.
What is the problem here? How can I investigate the issue?