Documentation 
The software documentation delivered by SAP reflects the status of the software at the time of delivery, that is, before any Customizing has been carried out for customers. For this reason it may not be appropriate for end-users to use the delivered documentation without it having been adapted.
The SAP Knowledge Warehouse is a user-friendly solution for creating, tailoring, translating, and distributing customer-specific documentation.
If you want to use the documentation delivered by SAP in SAP KW, after you have installed and configured SAP KW you have to Import the SAP KW Contents.
If you want to use the HTML export service to make content created in SAP KW available as help files in the format *.CHM or *.HTML for your users, open a customer message in the SAP Service Marketplace for component KM-KW.
Caution
The HTML export service is only released for installation and operation under Microsoft Windows.
Documentation in SAP KW offers the following benefits:
Provision of a user-friendly authoring environment for documentation authors.
Best possible methods to re-use documentation content stored in the system
Flexible and task or target group oriented creation of output formats.
Provision of an infrastructure to distribute documentation to all users.
Two areas are delivered in SAP KW 7.1 that you can use for documentation:
Documentation (IWBHELP area– source format of info objects is mainly Microsoft Word)
XML Documentation (XML_DOKU area– source format of info objects is mainly XML)