ocr: Invoices Data Mart lme Product ONERECORD PER austomer INOICELINETTEM Promotion Shipper Customer communications Data Mart ume ONE RECORD PET Procuct sustomer PROMOTION RESPONSES Premotion Response Combined Data Mart Report Product Promation Vumber otal sustomers Dollar Contacted Purchases Aigure 1A An example of two data marts with conformed dimensions Timo, Customer, Product, and Promotion). For example, these two data merts can work together to. produce a combined: report with Product and Promotion as rowi headers.