I have a bad universe or a data design issue.
Several versions of hierarchies reporting store entities in reporting Fact measures.
Example of date driven Hierarchy Dimension: ORG_KEY
START_DATE
END_DATE
STORE_NUMBER
ORG_HIERARCHY
CURR_FLG (Y/N)
Fact table : ORG_KEY
CALENDAR_KEY
TRANS_DATE
$amount
Calendar Dimension: CALENDAR_KEY
DAY_DATE
FY_WEEK (201452)
FY_PERIOD (201412)
FY_QUARTER (201401)
FISCAL_YEAR (2014)
Users WISH:
Wish for store number and org hierarchy to pull as of the last day of each pull without prompt. The Store(ORG_KEY) as in the fact table; but the ORG_HIERARCHY and other attributes as of the last day they pull.
Daily (Would be Calendar.Day_Date in Filter) ,
Week to date (would be Max Calendar.Day_Date for (201452) FY_WEEK as entered,
Month to date,
Year to date,
AdHoc queries.
My problem is I see how they could manually pull this in Webi. I have tried everything I know to join to no avail. I have not gotten @Prompts to work in joins, derived tables, etc. in the data foundation. Wonder what is difference between parameter in Data foundation vs. filter in buisness layer. None of them worked. 
Please help! ANY ideas would be appreciated. .