The micro status is used for the evaluation of the short-term reach of goals and shows the cycle between (repeated) first contact and purchase.
"URM - Customer Profile Micro Status" always shows the visitor status, a user had had in his last visit.
A visitor is always assigned to exactly one status (the one with the highest priority). The assignment is done over all visits.
As soon as a purchase is made, the assignment to a new micro status starts with the next visit.
The use of this dimension over time is normally not useful, as there is no time reference.
Training chapter Analysis of Goal Achievement