We are exporting a complete list of our customers and contact information from Quickbooks into excel.
Then in Quickbooks, we filter our customer list by customer ordered "product A", for example, and export into a separate spreadsheet. This report contains order history but not contact information.
We want to find which customers are duplicated, and use the information from the first list (the one with complete contact information) for our website. This means the duplicates can not be deleted.
How do we do it???
Bookmarks