Which reports can show you how website referrals, organic search, and ad campaigns assisted in the conversion process?
Ecommerce reports
Multi-Channel Funnel reports
Acquisition reports
Goals reports
Explanation:
By default, the channel labels that you see in Multi-Channel Funnels reports (Paid Search, Organic Search, Social Network, etc.) are defined as part of the MCF Channel Grouping. If you have specific analysis requirements, you may wish to create your own Custom Channel Grouping(s), each with its own set of labels. When you share a Custom Channel Grouping, only the configuration information is shared. Your data remains private. The following channel labels are defined as part of the MCF Channel Grouping and are the labels used by default in your reports. The channel definitions are not case sensitive.
Read more here: https://support.google.com/analytics/answer/1250116?hl=en
Create and use MCF Channel Groupings
By default, the channel labels that you see in Multi-Channel Funnels reports (Paid Search, Organic Search, Social Network, etc.) are defined as part of the MCF Channel Grouping. If you have specific analysis requirements, you may wish to create your own Custom Channel Grouping(s), each with its own set of labels. However, the MCF Channel Grouping labels are sufficient for many analysts’ needs.
https://support.google.com/analytics/answer/1191184?hl=en
About MCF Channels (and the MCF Channel Grouping)
In the Multi-Channel Funnels reports, channels are your sources of traffic. The MCF Channel Grouping is the default set of labels, each label applied to a channel or group of channels that you want to see in your reports.