Overview
Amazon customer IDs are generated using buyer email, buyer name, and shipping name. For some Amazon-fulfilled orders, these fields were not always populated in the source data, which could result in customers being identified less accurately. We've updated how this data is sourced to improve match rates.
What we changed
For Amazon-fulfilled (AFN) orders, buyer email, buyer name, and shipping name are now supplemented with data from Amazon's shipment report when the primary source does not have a value. Merchant-fulfilled (MFN) orders are unaffected and continue to use the existing data source.
What to expect
Customer identification for Amazon-fulfilled orders will be more accurate. You may see minor shifts in customer counts or customer profiles as previously unmatched records are now correctly attributed. No action is required.