Office 365 Reporting Web Service Message Trace - It says it can get the past 30 days but i can only get the past 7 days

Question

It says Message Trace data is stored for 90 days here: http://technet.microsoft.com/library/jj723162(v=exchg.150).aspx
When running the MessageTrace report using the Office 365 Reporting Web Service it only returns the past
7 days, even though it says up to 30 days here: http://msdn.microsoft.com/en-us/library/office/jj984335(v=office.15).aspx.
PowerShell’s "Get-MessageTrace" cmdlet only returns the past 7 days as well. PowerShell also has
an alternative cmdlet called "Start-HistoricalSearch" which returns the MessageTrace results between 7 and 90 days old.
Is it supposed to return 30 days, or is the documentation wrong, or is their an alternative report (like
PowerShell) to get MessageTrace results for over 7 days using the Office 365 Reporting Web Service?
Note: I'm aware that the results are returned in batches of 2000 MessageTrace results.

Answer 1

That document is pretty old last modified March 2013 so I would say it's out of date. The reporting services are still pretty new in the current release I believe 7 days is limit for the Rest Endpoint and the Get-MessageTrace cmdlet (which is what
the more recent documentation around message tracking say) there is no REST endpoint for Start-HistoricalSearch you can see all the current endpoints by looking at the Metadata via
https://reports.office365.com/ecp/reportingwebservice/reporting.svc/$metadata
These services are evolving so new features and reports are added which is explained in
http://msdn.microsoft.com/EN-US/library/office/jj984346(v=office.15).aspx . But there is no public information on Timeframes and what reports and features are going to be added in future updates (that I know of). If you need data older then
7 days then Automating the HistoricalSearch cmdlets would be the way to do it for now.
Cheers
Glen