Zoho Automation : Potentials and Accounts with date field

Zoho Automation : Potentials and Accounts with date field

Hi all,

Here is the situation:

In Potentials, I have a date field ''CLG - Activation Date''.
In Accounts, I have a checkbox   ''Active CLG Customer'', a date field ''CLG - Activation Date'' and a date field ''CLG - Deactivation Date''.


What I want (I'm guessing I'll need a custom function) :

1) When my account manager creates a new Deal, ''WIN'' and there is a ''CLG - Activation Date'', I want the same named field in Account (CLG - Activation Date) to be updated and the checkbox checked ( Active CLG Customer); both only on the specified date, not before.
2) If, the field (CLG - Deactivation Date) is filed in Account, I want the checkbox ( Active CLG Customer) uncheck on the specified date, not before.

Is this all possible ?

Thank you,