You can lock users' time-track from modifications to be sure that
billed and invoiced time will not change after selected date.
Such locking will help you avoid situations when users edit their time-track
data after it has been:
approved
used for billing
audited
To lock data from modification you just need to specify a "locking date". The system then
locks the time-track period preceding this date for all users and for all Customers, Projects and Tasks.
When locking a period you can provide optional comments to the locking record up to 2000 characters long.
History of all locking records (including locking date, manager, and comments)
is available for further review and audit.
You can re-open (unlock) the last locked time period if such a need arises.
