The CSD provides this functionality by grouping product together into a
SKU(s) as the attribute.
1. Go to the CSD's "Channel Mapping" tab.
2. Input the SKU(s) to track under the "Value" column. See screenshot below for example.
3. In the "Retention" report, select
sub_channel from the filter_name , the
first order will appear in the
filter_value list after the data refresh.