Hi:
As I said, Base SAS has the Output Delivery system, where you can create a variety of files ready for the web -- most notably, HTML, PDF, RTF, LaTeX, DocBook, XML, WML, to name just a few. The hardest part about using ODS with Base SAS is probably figuring out where to write your SAS-created files and how to make them accessible to your SAP portal, depending on whether they use webDAV storage, web server HTTP protocol or SharePoint-type technology.
When someone uses the SAS Information Delivery Portal, they are using a whole set of web-tier "plumbing" that includes access to the servers, access to the webDAV that SAS uses, access to the Stored Process Web Application, access to SAS Information Technologies, access to SAS Java Beans and Web Services, etc, etc. I believe the answer to your question really lies in the particular configuration or product suite of SAS that you are trying to use with the SAP portal; whether you want the information surfaced in a dynamic mode, or whether you want to use SAS to create "static" HTML files that would be accessible in any web environment.
It also depends on what your expectation is. In the SAS Security Platform Administrators guide, for example, there is a discussion of how to use SAP data sources from within the SAS BI Platform (which includes the SAS Information Delivery Portal). Possibly in the SAP EP documentation, there is some information about accessing SAS data.
If, however, you have Base SAS and you want to create static HTML reports from SAS and you want to use those static HTML reports inside the SAP portal, then you might want to investigate Output Delivery System basics.
If the links above are not relevant to what you want to do, or you want to dynamically execute SAS programs from within the SAP Portal, then I believe this is a question that is best answered by your SAS Sales Rep and/or the technical consultant that he or she would work with.
cynthia