title: How do I insert into a column and after some time change myself automatically
body: <p>I would like to know how, after entering a "client", it appears in the column ("status") as "Contacted" and after 15 days it automatically changes to "Uncontacted".</p>
  
  <p>I do not succeed .. I tried with 'select' between column "date time" and "status" but .. it does not show me anything .. and ..</p>
  
  <p>Originally I need to insert .. it has to change automatically after those 15 days .. but I can not succeed..</p>