The item I linked to essentially was a Q and A thread to support on the Auditing functionality in 9r1.
Here was the content of that thread. The bulleted items are the answers to the numbered questions.
1) Is user auditing turn on for Ariba 9r1 and Ariba Buyer 8.2?
• Yes, there is user auditing in Ariba Buyer 9r1. You can see the records in “Core Administration” --> “Server Manager” --> “Audit Log” section.
2) What kind of users’ actions are audited ?
• User login activities and actions performed using Ariba Administrator (For Example, ran a scheduled task, ran a Data import/export task,etc).
Note: This only gives brief information.
3) Are user actions on transactions e.g Person A create Transaction X, Person B makes change to Transaction etc audited?.
• No. Only the actions which are done inside the Administrator and user login activities are audited.
4) How can we retrieve the audit data ? Are audit data stored in objects or in tables that are hidden from customer ? Can it be exported out to Excel or CSV formats ?
• This can be retrieved via Audit Log under Core Administration --> Server manager. The data is retrieved directly from the database. You can export the data to Excel.
5) How much audit history does Ariba retain ?
• All the data related to user login activities and actions performed in Ariba administrator which is stored in the database can be retrieved.
6) Can the audit data be retrieved from backend ? What are the objects / tables / columns ?
• It might be possible to retrieve the data from the back end. But this might be complex as the data in this table may be linked to many other tables/schemas.
• There is a Cluster root, ariba.app.core.StaticAuditInfo which is involved in retrieving data. The corresponding table in the SQL database is StaticAuditInfoTab. The columns in this table are involved in fetching the data.
Note: You can see this be enabling aql.Query/Debug and searching for any user whose audit info you want to see under Core Administration Audit Log.