'Override Last-Touch Channel' - default setting causes completely incorrect marketing channel data
The Marketing Channels default setting is for the 'Override Last-Touch Channel' boxes to all be unchecked, but as I've learned, this actually causes a major problem with marketing channel conversion attribution. The correct default setting should be for all boxes to be checked. When none of the boxes are checked, the data does not collect based on touch points- in fact it completely disregards a first click/last click concept, and will attribute conversion credit purely on the ordering of channel process rules.
Here is an example of what happens when all the boxes are left unchecked:
Let's assume Paid Search is at the top of your processing rules, and Email is second. A user first visits the site from Paid Search ad, then a week later they visit from Email and convert. In this example, Paid Search will receive full credit for this conversion in the Last-Touch Channel report as well as the First-Touch Channel report.
Essentially, whatever is at the top of the processing rule list will trump all other channels below it (regardless of a user's last-touch channel interaction). Even if the user visits the 5 times from 5 different channels, if they ever visited the site via Paid Search, then Paid Search will receive full conversion credit.
In my opinion, this is a much needed change within the interface. There should be a clear warning of this potential problem as many organizations could unknowingly have this issue, and could be making major marketing decisions based on completely incorrect data.
