Visitor ID's being re-used | Community
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Meghan_Powers
Meghan_Powers
New Participant
May 3, 2024 1:57 AM UTC
Question

Visitor ID's being re-used

According to Adobe documentation, Adobe Visitor ID's/cookies expire after 2 years. Or for customers who delete their cookies, the Visitor ID can be re-used after 1 year, but not if it's within 1 year.
We're seeing (a small percent) of visitor ID's show up again with the same visit numbers after only a few days or weeks.
So visitor id 123abc with visit number = 1 might show up for 3/1/24 and then again on 4/30/24, we'll see the same visitor id with visit num = 1 again.
Does anyone why this would be happening?

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8 replies

Jennifer_Kunz
Jennifer_Kunz
New Participant
May 7, 2024 10:29 PM UTC

Is this the built-in Visit Number dimension, rather than the now-not-really-needed getVisitNum plugin?
And by Visitor ID, are you referring to the ECID (or MID or whatever we're calling it today), copied into a prop or eVar? 

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Meghan_Powers
Meghan_PowersAuthor
New Participant
May 8, 2024 1:41 AM UTC

This is the out of box Visit num, and not the ECID in an eVar, but Adobe's out of box Visitor ID.

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    Jennifer_Kunz
    Jennifer_Kunz
    New Participant
    May 8, 2024 2:06 PM UTC

    Well, shucks. Had it been the plugin, that would have been as easy solve (the plugin is based on a cookie that doesn't last long on safari).
    How do you get the Visitor ID? It's (annoyingly) not generally available in reporting without folks doing something custom. 

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    k6ivupuu_k
    k6ivupuu_k
    Level 2
    May 5, 2024 8:42 AM UTC

    Perhaps the question is not clear, but are you not describing just a normal visitor visiting your pages on different days?

     

    1. Day 1 I accept cookies when visiting your site (1 visitor, 1 visit)

    2. Day 2 I visit again - 1 visitor, 2 visits.

     

    Visitor ID remains the same to be able to aggregate visits per cookie (or visitor ID or whatever). 

     

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    Meghan_Powers
    Meghan_PowersAuthor
    New Participant
    May 5, 2024 4:07 PM UTC

    We are seeing the same visitor id with the same visit number repeat itself sometimes after a few days or weeks.  So we'll see visitorid 123abc and visit num = 1 come on one day and then a few days or weeks later we'll see the same visitorid 123abc appear in Adobe with visit num = 1 again.  

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