Shows a unique visitor ID, that is written into a cookie created by Mapp. This cookie ID is unique for each Mapp Intelligence account and (when using 1st party cookies) for each domain.
In order to identify a user as unique as possible, use the dimension "Visitor Id". Here also login information (customer ID; if available) is taken into account for the visitor identification.
Syntax of the ID
End device Visitor Id is composed by several information:
Cookies created by the server (3rd party cookies)
Syntax: 4 + timestamp (10-digit) + 8-digit random numberCookies created by the browser (1st party cookies)
Syntax: 2 + timestamp (10-digit) + 8-digit random number
invalid EID (contains letters, is too long or too short)
Syntax: 5 + timestamp (10-digit) + 8-digit random number
When using SDKs
Syntax: 6 + timestamp (10-digit) + 8-digit random number
Name of the cookies
The cookies are called "wt3_eid" when using 1st party cookies. When using 3rd party cookies they are called "wteid_<<TRACKID>>".
The visitor ID is submitted to Mapp in the parameter "eid" when using 1st party cookies.
Duration
The duration of the cookie is 6 months by default and can be changed in Mapp Tag Integration (when using 1st party cookies) or by the Mapp consulting (when using 3rd party cookies).
A new ID is generated at the next visit in case the cookie was deleted manually or after 6 months of inactivity.