N/certificateControl Module
Certificate.monthReminder
Property Description: Indicates the setting of the Month box for Expiration Reminders on the certificate record. This property is set to true if the Month box is checked and email reminders are sent to account administrators one month before the certificate expires. If the Copy Employees box is also checked, selected employees are copied on the reminder emails.
Type: boolean true|false
Module: N/certificateControl Module
Parent Object: certificateControl.Certificate
Sibling Object Members: Certificate Object Members
Since: 2019.2
Search NetSuite - https://system.netsuite.com/app/help/helpcenter.nl?search=Certificate.monthReminder

// Code Example 1

// Add additional code

//...

//load the certificate record object

var loadedCertificate = cc.loadCertificate({

    scriptId : 'custcertificate_testid'

    });

//update the Expiration Reminder for Month to checked

loadedCertificate.monthReminder = true;

//save the certificate record object

loadedCertificate.save();

//...

// Add additional code



//SOURCE: https://system.netsuite.com/app/help/helpcenter.nl?fid=section_156263099184.html