Creating campaigns with individual objects

Hi,

   I would like to create a "file" extract of the target group from a campaign to include both Individual object and business partner information. Can any one please let me know how to do this ?

For example: My campaign should include all customers who bought a laptop in the last 30 days. And the file extract of the target group should have info about the model number of the laptop (Set type) Unique ID (I-object ID) and customer information like name, address etc.

I am able to create an attribute list having both search parameters but I am having trouble extraction the target group containing both objects and BPu2019s to a file. Can you please help

Any alternatives are also welcome

Thanks and regards

Reddy