Unable to use addDays() addDaysUTC() to modify due date using a business rule

[Zijadx]

Hello, 

I ran into an issue while trying to set the due date on an incident form using a business rule. 

The workflow:

• automatically create a new incident whenever an incident with the short description "test" is created (done)
• pre-fill fields on the new incident using a business rule (done)
• set the due date on the new incident to be 2 weeks before the due date on the original incident (not done) 

The third item is where I ran into an issue, I am unable to manipulate the due date from the original ticket, the new incident either has the same due date as the original or a blank due date. 

Code:

(function executeRule(current, previous /*null when async*/) {

//Generate the new incident
var gr = new GlideRecord('incident');

gr.initialize();

//set fields on the form 
gr.short_description = 'Created via business rule - Short Description';
gr.description = 'Created via business rule - Description';
gr.impact = '2 - Medium';
gr.urgency = '1 - High';
gr.assignment_group = 'f33a0002db2077884af1fd33399619a8';

//set due date to be 14 days less than the due date on the original incident 

var gdt = current.due_date;
newGdt = gdt.addDays(-14);
gr.due_date = newGdt;

gr.insert(); //insert the new record

})(current, previous);

//I also tried the following for the due date portion: 

gr.due_date = current.due_date.addDays(-14);

gdt2 = gdt.addDays(-14);
gr.due_date = gdt2;

//tried this

var gdt = current.due_date.getGlideObject();

gdt2 = gdt.addDays(-14);
gr.due_date = gdt2;

What am I missing? also note that I am able to use a new glide date time and modify it with no issues, for example: I can take the current date and time, add or subtract days from it and add have it on the form with no issues. I am only running into the issue above if I try to modify a manually set date. 

Thanks,

[Mike Patel]

Did you tried

var gdt = new GlideDateTime(current.due_date);
var newGdt = gdt.addDays(-14);

[Ankur Bawiskar]

Hi,

addDays() and addDaysUTC() doesn't return anything; can you update as below and try once

var gdt = new GlideDateTime(current.due_date);

gdt.addDays(-14);

gr.due_date = gdt;

Mark ✅ Correct if this solves your issue and also mark 👍 Helpful if you find my response worthy based on the impact.
Thanks
Ankur

[Ian Mildon]

I second Mike's suggestion of using the following to define your current.due_date. Anytime you are wanting to run script against a date value, you need to define it as a GlideDateTime value.

var gdt = new GlideDateTime(current.due_date);

Additionally, when you are setting the new date value you need to add ".getValue();" so in your example I would make the last line:

gr.due_date = gdt2.getValue();