SAP Netweaver Portal

Time based Publishing

First, you have to enable tbp (time dependent publishing service) service in your repository.
This service allow you:
Enables users to define a time frame during which documents are published (visible).
Don't forget:
That the time-dependent publishing service requires the application property service (properties)
Properties allow you:
This service is required by every application or service that stores application properties with resources.
It is a prerequisite, for example, for document classification, the rating service, or the access statistics service (read-flag).

When you register this service with a repository, you must also register the application property service. The latter is required because the time-dependent publishing service stores application properties.

http://help.sap.com/saphelp_nw2004s/helpdata/en/69/d96b86a84611d5993600508b6b8b11/frameset.htm

After you do that, you must restart your application server.

Tbp service:
This service enables authors or content managers to specify a time interval during which a document is visible to users who have read permission for the document.
http://help.sap.com/saphelp_nw2004s/helpdata/en/e8/a9a76828b8dc469969ff450ec81ced/frameset.htm

To activate time-dependent publishing for a folder, choose Settings ® Lifetime in the Details dialog box for the folder. Click Activate Time-Dependent Publishing.

To define the lifetime of a document, choose Settings -> Properties -> Lifetime in the Details dialog box for the document. Enter a date and time in the Valid From and Valid Until fields.

You must make this setting individually for each folder.
If you create a new document and do not enter values for Valid From and Valid Until, the document is initially only visible to users with write permission
The document becomes visible to users with read permission when the Valid From time is reached. At this point, people who have subscribed are notified about the publication of the document. The document can then be found using the search function or by searching in categories.
Time-dependent publishing can give rise to delays of up to 15 minutes. This is caused by the scheduler pulse. This means that if you have specified 8am in the Valid From field, the document is visible by 8.15am at the latest. The document becomes invisible to users with read permission when the Valid Until time is reached. The document is not deleted. Users with write permission can still see the document.