What metric are you using in regards to your "Last Touch Channel"...
Data Warehouse does NOT de-duplicate values... so if you are taking the flat, non-deduped data from your data warehouse, and adding the values, you will always get inflated stats due to the nature of how the information is presented.
Let's look at a few simple examples:
Visit 1 (single channel - search)
- (Google Search)
- Page 1
- Marketing Channel explicitly set to "search"
- Marketing Channel Instance triggered
- Page 2
- Marketing Channel retains value "search"
- Marketing Channel Instance is not triggered, since the channel was not set in this call
- Page 3
- Marketing Channel retains value "search"
- Marketing Channel Instance is not triggered, since the channel was not set in this call
Visit 2 (Multiple Channels)
- (Google Search)
- Page 4
- Marketing Channel explicitly set to "search"
- Marketing Channel Instance triggered
- Page 5
- Marketing Channel retains value "search"
- Marketing Channel Instance is not triggered, since the channel was not set in this call
- (User checks their social feed, clicks on a link)
- Page 6
- Marketing Channel explicitly set to "social network"
- Marketing Channel Instance triggered
- Page 7
- Marketing Channel retains value "social network"
- Marketing Channel Instance is not triggered, since the channel was not set in this call
- (User gets a Marketing Email, and clicks on a link)
- Page 8
- Marketing Channel explicitly set to "email"
- Marketing Channel Instance triggered
- Page 9
- Marketing Channel retains value "email"
- Marketing Channel Instance is not triggered, since the channel was not set in this call
Now, let's look at this how Adobe Workspace would present the info:
| |
|
Marketing Channel Instance |
Page Views |
Visits |
| Marketing Channel |
|
4 |
9 |
2 |
| |
search |
2 |
5 |
2 |
| |
social network |
1 |
2 |
1 |
| |
email |
1 |
2 |
1 |
Now, let's look at how the same information is going to come out in Data Warehouse:
| Marketing Channel |
Page |
Marketing Channel Instance |
Page Views |
Visits |
| search |
Page 1 |
1 |
1 |
1 |
| search |
Page 2 |
0 |
1 |
1 |
| search |
Page 3 |
0 |
1 |
1 |
| search |
Page 4 |
1 |
1 |
1 |
| search |
Page 5 |
0 |
1 |
1 |
| social network |
Page 6 |
1 |
1 |
1 |
| social network |
Page 7 |
0 |
1 |
1 |
| email |
Page 8 |
1 |
1 |
1 |
| email |
Page 9 |
0 |
1 |
1 |
As you can see, there is no "total" row, and if you are looking at something like "Visit" which needs de-duplication to be correct, you cannot achieve this with the Data Warehouse export...