I'm not sure I completely understand this query
https://docs.netapp.com/us-en/ontap/data-protection/create-snapshot-policy-task.html
Generally within the snapshot policy you define when to create Snapshot copies, how many copies to retain, and how to name them
Let's say you applied daily schedule to create snapshots at 1 am and defined -count as 14
then snapshots will be created every day at 1 am
when they reach an amount of 14, the next snapshot creation -> the oldest snapshot will be deleted as per policy configuration it retains only 14
hopefully that answers your question
