What are the expectations regarding the availability and quality of documentation?

When understanding the system, some resources from the SAP support team are necessary. However, reliable documentation would limit the need for assistance.
All documentation required for investigation will be immediately available, or else provided within the hour. The supplied documents are relevant, complete and up to date.
It is expected that documentation is officially released and contains valid signatures for sign off. The release date of the document can be determines as well as the indication when the document will expire.