SCD 2 Audit / Metadata Columns

What are the standard audit columns / meta data columns that you will create in a SCD 2 Dimension table.

potentially we will get more than one data feed from the same vendor for any given day and we need to track the versions / historical changes to the data .

In a typical SCD2 table, besides the business data columns, PK/Sk, what other standard collumns that you would create ?

Thanks
venkat

system add date, system modify date (date rows were added or modified)
load audit id, modify audit id (ETL audit identifier to identify which ETL process loaded or modified the data)

I put all of these on fact rows too except for the modify audit id unless it is an accumulating snapshot fact.

Can you pls give an example of a type-2 dimension table and fact table with all the audit columns you would include