Data federator Universe refresh issue

Hi all,
we are facing the issue refreshing the Universe which is based on Data Federator.
whenver the changes are done in BW Cube i.e adding the dimension or the keyfigure. the dimensionobject  is not appearing in the Universe.even we delete the dimension or a key figure from BW and then refresh the dependent tables in DF . Deploy again the project,it is updating the catalog but when we refresh the Universe it is not refreshing properly
SO data federator and BW are in Sync but when we refresh the Universe it is not in sync
we are using BO XI SP3  and BW 7.01 SP7
I would really appreciate your valuable inputs regarding this issue
Regards
Suzane paul

Hi Amit,
Thanks for your reply.
Ok. So, Universe on top of Data Federator has limited functionality.
And, other option you mentioned is on report level. I am creating an adhoc universe and I have few objects which will calculate days between 2 dates coming from 2 different tables.
But, how can I achieve this on Data Federator level. I have no function there to find Days Between 2 dates. I see lot of time and date functions but not the one I required. Also, I added a column in the target table and tried to apply the formula there in the default mapping area. But, I see only the selected target table. I need another date column from another table, which is not displayed in the default mapping area.
How can I achieve this?
Regards,
-Peter

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