Deleting contacts for specific time frame

@MariaZOLDI 

This Klaviyo Article gives pretty detailed explanation on how to delete profiles from an account.

https://help.klaviyo.com/hc/en-us/articles/24312135764251#h_01HT5F82SYT68E2X2Z68DC78RR

In short you need a list or a segment and then through your account setting you can go to delete those people from the specific list/segment.

Just a note not sure if you know the difference between suppressing and deleting so read the whole article to decide what is the right decision for you in this specific case. Maybe just suppression would be enough. This was you will still keep the profiles info in the account but you just wont be able to email them, if you delete them then all the data connected to those profiles will be removed from your account.