Are OLAP cubes meant only for the cases where the aggregate operations
are involved for major set of records?

I have a case where I have to maintain the OLAP cubes to give the
summary of the Customer transactions, and any point of time, the query
will always be meant for a single Customer.
Can I use OLAP cubes for this purpose?

By going through the tutorials on the OLAP cubes, I understand that it
can be used for the cases where it involves generating reports for
bulk of Customers (i.e. where aggregate SQL operations are involved).
Can it also be used for the cases where the queries from the
applications, are always meant for single customer?