In Mariana Tek, a visit is exhausted on reservation - the visits remaining condition specifically looks at check-ins, not reservations.
For example, if I buy a 5 pack on Monday and immediately reserve 4 classes, according to Mariana Tek, I have 1 visit remaining. In regards to the visits remaining condition, on Monday, I will have 5 visits remaining because I have not signed in to any of those classes.
It's important to note that expired credit packages with visits remaining will not be recognized by this condition.
This condition can be used in a couple of different ways!
Within an auto campaign, it allows you to target people when they are running low on a class pack! You can use visits remaining is 1, and leave the filter on the credit package off to retarget anyone with 1 credit remaining, or filter on the credit package to target them in greater detail!
Within a segment, it allows you to create a list of everyone with 1 visit to target them with a one-off flash sale to convert them to a subsequent credit package!