Generally, we used to get visitor ID report from Adobe Data warehouse for the email campaign. However, recently we have noticed some different scenarios on the reports. Looks like, we have an ID's for the health care professionals and they used to login from their ID’s. In the report, we have seen two visitor ID’s for the single ID login. so, we are just wondering how come this happened? We understand that cookie’s will be used to identify the visitor ID. What are the possible ways that the cookie with get expire and another visitor ID will get generated due to this cookie expiration on the same login?
It would be good if we get any expected clarification to convey to one of our client.