Need to send a custom email to Assignee if a checkbox condition is satisfied.

[Aishwarya Rajan]

Hi,

I need to send out a custom email if a checkbox condition is satisfied i.e the value of a checkbox condition is changed from null to yes. I tried using this 

cfValues["custom_field_name"]?.getValue() != "Yes"

But its not working...I referred to the docs n links available online..but 

for multiselect it says:

cfValues['MyMultiSelect']*.value.contains("AAA")

But I have to send out the email if my check box is marked Yes and there is only one option.."Yes" and not multi-options.

Can I get any leads on this? TIA

[Aishwarya Rajan]

I tried doing this

cfValues['customfield_10435']?.value == 'Yes'

But it says customfield_10435 is not recoginzed.