Clarification on 7.0 Standard datasource

Hi,

There are some standard datasources like 2lis_02_ITM and 2lis_02_SCL .

How to load the data into cube as there are update rules and transfer rules crated for the standard cube.

Data is loaded into PSA. Shall I have to create transformations or can I do anything with the update rules/transfer rules.

Please suggest me the procedure.

Thanks in advance!