"No data to retreive" depending selection but there are data

Question

Hi folks,
It's happening something really weird in a webi we have built.
We have a webi report built on a query bex - olap connection.  In the query we have a variable which is 0PLANT, it's a hierarchy variable; in the webi itself we have specified the rest of variables, amongst then Document Date (0DOC_DATE).
If we run the report choosing different values just in 0PLANT and 0DOC_DATE variables, webi shows data... sometimes!
Case 1)
0PLANT = the top hierarchy node
0DOC_DATE = 01.10.2013 - 31.12.2013
Data -> ok
Case 2)
0PLANT = the top hierarchy node
0DOC_DATE = 01.01.2013 - 31.12.2013
No data to retrieve, which is a nonsense because at least there are date for the last 3 months
Case 3)
0PLANT = a minor hierarchy node
0DOC_DATE = 01.01.2013 - 31.12.2013
Data -> ok
As you see, sometimes reports shows a message saying "No data to retreive" but there are data.
We are thinking when we make a huge selection, as webi would show a huge amount of rows, instead of giving a "time-out" or another error, is saying that "no data to retreive".
What do you think?
Thanks

Answer 1

Hi,
After having done lots of executions and tests, we think we have found the possible explanation. It turns out that this report has a lot of dimensions (around 30) as "free dimensions", I mean, not shown directly in the report, but possible to include them once run.
It seems that when a webi is executed, BO looks for all data, independently it's or not in the default view. We have removed all dimensions, remaining just those which are really needed, and webi worked!
It looks like it was a kind of time-out error.
Extrange.
BYT Koen; case1 is january, and case2 is october (I should have put a more visible example lol)
Thanks