How can I upload sales order in hybris?

Dear all,

I need to segment my contacts in relation to their actions as buyers (for example: doing a campaign if they have spent more than 100euros).

Thus, I need to upload "sales_order". I was thinking to upload them as interactions in this way:

ID_ORIGIN              | ID                   | EURO

sales_oder_file          01                     10

But then I have to link it to the contacts.. I customize the file with a new column called "sales_order_file" ( I have to create a new facet.. SPRO?), in which I will register 01 (the ID) .

Do I miss something? I will lose the fact that Hybris merges information between contacts and interactions using the EMAIL address?

Thanks,

Cristina