Is this true or common that offers or campaigns reset after like a month?

[Doug Jones]

Is this true or common that offers or campaigns reset after like a month? For example a DOI email submission campaign. A guy signs up completes it one month.. Im sure that ip address cant be used again. After like one month they can sign up again and it counts as a convert again?

 

[Graybeard]

They are logged by email;IP;user_name ...other identifiers permanently or pruned after some time period like years?