As seen in this link Understanding the structure of Snowplow data - Snowplow Docs , there are some individual fields as Marketing / traffic source fields dedicated to those datas :
We would like to track those datas and log them in our own DB.
Is it possible to use this schema as a custom context in a pageview event ?
When we try, we see in the snowplow debugger that the context property Data validity is Not Valid.
What are the requirements in order to track and get those datas/fields ?
Do we need a special account, snowplow service/solution, or can we achieve this ourselves ?