Why do we have the same visitor id for multiple sessions (web-traffic from different countries)?

It is around 3% of our total traffic. Which still felt high for shared areas...but our industry may mean there is a higher than expected use of private browsing or clearing of cookies so I can chalk it down to that.

Locutus243, what is the percent of such Visitor IDs (each is linked to hundreds of Customer IDs) in total volume of the authenticated traffic? — If it is absolutely insignificant, maybe a part of the customers are from internet cafes or online kiosks...

I have heard one web analyst working at a bank had a challenge — a significant share of traffic to Personal Cabinet was from offline branches where Customers could use shared devices (laptops). Another example is the computers at the airports. Just imagine how many people may use the same device (same cookie ID).

Dear Andrey Osadchuk,​ asheeshp​, @ursboller,

Do you have any inputs for the question from @Locutus243?

Thank You!

Arun

We are having a similar issue. We have a raw data feed which includes our internal userID and the Adobe allocated visitorID. Therefore we should see a one to many relationship between custID and visitorID to account for cookies, multiple devices etc...

What we're getting is the same visitorID being allocated to upto 100+ custIDs (which are all unique to an individual).

Did anyone ever get back to you with a resolution?

To me validating implementation by try and replicating the scenario would be the best bet here. like if this is happening from the same type of browser / System etc.

I am using the data feed , basically we get a raw file with the data feed for previous day that has all the information , please refer to link below we have most of these columns in the raw file and import in to our own datawarehouse.

https://marketing.adobe.com/resources/help/en_US/reference/datafeeds-reference.html

So I am basically using this information from the raw data and trying to identify the visitor Id, a while ago when this was implemented, the adobe visitor Id has been set up with evar7. So  for example , basically if I visit the website the first time (visit_num =1 )  the evar7/Adobe Visitor Id lets say is xyz123abc , If I do not delete cookies and come back  to the site 100th time (visit_num = 100)  then I get assigned the same evar7 /AdobeVisitior Id = xyz123abc , just an FYI for all 100 visits the visid_high and visid_low value will always be same irrespective of the number of  visit.  But the data discrepancies I notice in the raw data is multiple users with different visid_high and visid_low have the same AdobevisitorId. Since we get the geo city ,geo country, IP all these values are different for the same adobe visitorId.  I am not sure if there is problem with the setup.Different sessions with same AdobeVisitor Id.

Thank you so much for all you help ankits28281247

Tracking server is the location which is required to store the image request and cookies for the data collection for reporting purpose.

s_vi based on which visitor is identified is always set on the tracking server domain: Correctly populate the trackingServer and trackingServerSecure variable

it seems like to be the case to me but I think in order to validate if the implementation is right, you have two way:

Data warehouse: you can pull a data warehouse report with VisitorID and eVar columns to see if you are seeing different eVar value for the same visitor ID, if that be the case you might want to review your implementation and check with the developers how they are setting eVar.

Data Feed: it's the data which is raw format and stored at adobe server exactly in the form of how it's been sent from the website and you can setup a data feed and review the data to validate the same thing: here is the document which helps how you can leverage the data feed information and setup for your use: Analytics Data Feed

Hi ankits28281247​. Thank you for  taking time to answer this question. Appreciate all your help.

Sorry my mistake I was making up dummy data for example purposes but all the fields for the Adobe visitor Id are basically the same ,for instance  = 1f5aacf448ed89563oo555605eccc8d3 . I wasn't part of the setup years ago, but now we are trying to make sense of the existing and future data for our analytic needs.  I think the way it is setup is out of box variable is being passed to an evar is my conclusion.I might be wrong. My end goal is to identify unique visitor, which is impossible with all the discrepancies with the Adobe ID. Could you shed some light on the tracking server. I am not sure what that means.

Hi Shaista,

if I am reading this right you are capturing these values in an eVar from the s_vi which is set on the tracking server, i noticed that all three are different, notice how we have 2, 3 and 4 and the end of each values, i am interested in knowing how you are passing these values in that eVar..