in change table start_date field should show 4 days date select options only how to do that?

[Dr Atul G- LNG]

Hi @Siddiqbasha 

Instead of doing this, better out a UI policy that the start date can be greater than 4 days and if user select more than 4 days show a message, that is easy and quick.

[Siddiqbasha]

If I select planned date more than 4 days it should not me allow to select.

[Juhi Poddar]

Hello @Siddiqbasha 

In ServiceNow, disabling specific dates directly within the calendar picker isn’t supported without using DOM manipulation, which isn’t recommended. However, you can achieve similar functionality by setting up a UI Policy and UI Policy Action to validate the date selection.

Here's how:

1. Create a UI Policy that runs on form load or on change of the start_date field.
2. In the UI Policy Action, configure a condition to check if the selected date is outside the allowed four-day range.
3. If an invalid date is selected, clear the date field or display an error message.

This approach requires little to no code and keeps the setup manageable within ServiceNow’s best practices.

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Thank You
Juhi Poddar
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[SN_Learn · Accepted solution]

Hi @Siddiqbasha ,

Please try the below in UI policy:

In the Script section:

function onCondition() {
    g_form.clearValue('start_date');
    g_form.showFieldMsg('start_date', 'Selected Planned start date cannot be more than 4 days!', 'error', true);
}

Result:

When more than 4 days selected: