Rule on date now() +9

[Harry Contos]

Hello, i've attached a screenshot of a rule that i'm trying to get to work for updating a record.

The purpose is that when I change a field that is called Priority to High. It should automatically sets the due date plus I9 days from today. Everything i've seen so far, says it should work by using the now() +9 But I keep getting an error.

org.mozilla.javascript.EcmaError: TypeError: Can't set value 'now() + 9' to field Due Date Old : Unparseable date: "now()" (Trigger 5.js#5)

Thanks,

Harry

[Er Mo]

Hallo

Wandle die Regel in ein Skript um und Poste dieses . Glaube das die regel einen Fehler macht .

Hello, please convert the rule into a script and post it. I think the rule is making a mistake.

Ernst

[Harry Contos]

I was trying to use the rules and not a script.

.

But here is a JS i would use as a Trigger in scripts. 

var e = entry();

// Only run if Priority is High AND Due Date is empty

if (e.field("Priority") === "High" && !e.field("Due Date")) {

    var d = new Date();

    d.setDate(d.getDate() + 9);

    // Strip time (date-only field)

    var dateOnly = new Date(d.getFullYear(), d.getMonth(), d.getDate());

    e.set("Due Date", dateOnly);

}

 Thanks 

Thanks,

Harry

---

From: memento...@googlegroups.com <memento...@googlegroups.com> on behalf of Er Mo <ernst...@gmail.com>
Sent: Sunday, January 18, 2026 12:27:03 PM
To: mementodatabase <memento...@googlegroups.com>
Subject: Re: Rule on date now() +9

 

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[Harry Contos]

I was trying to use the rules and not a script. I just thought a rule would be simpler. 

[Er Mo]

Hallo

Der Fehler ist in der 5 Zeile . Was steht in der 5 Zeile ? Ich wieß nicht wie man das einsehen kann ohne es in ein Skript umzuwandeln .

Hello

The error is in line 5. What does line 5 say? I don't know how to see it without converting it into a script.

Ernst

[Mmm]

В триггере вместо задачи "Обновить поле" можете использовать задачу "Скрипт" (вкладка задач Дополнительно).

let date = moment().add(9,'d').format('DD.MM.YYYY'); 

entry().set('Due Date', date);

понедельник, 19 января 2026 г. в 00:04:55 UTC+3, ernst...@gmail.com:

[David Gilmore]

The reason why something like "now() + 9" is not accepted is there is no indication of what the 9 indicates, a second, minute, day, month, or ???.

A proper way to do this in Javacript is to do like Mmm suggested. In pure javascript, you can also do it by:

var dt = new Date();  // Creates data object with current date and time
dt.setDate(dt.getDate() + 9);  // The setDate and getDate methods assumes day. There are other methods for adding seconds, minutes, months, or whatever
e.set("datefield", dt.getTime());  // Stores adjusted date object into a Memento "datefield" field.