When you set-up at Google Ad campaign, you are asked to select a campaign type. ChannelMix uses that selection to help determine how we define channel for that campaign.
Below is how we define those channels:
|Campaign Type||ChannelMix Channel|
|Search||= Paid Search|
|Video||= Online Video|
If for some reason you do not have a set campaign type, your ChannelMix Channel might default to your selected network type, as seen in the image below.