Rules Formatting

I am trying to post JSON data to a webhook. What is wrong with my syntax?

[{
    "id": "${event.id}",
    "title": "${event.data.Title.iv}",
    "body": "${event.data.body.iv}"
}]

I have also tried this format, but only title is populated.

[
{
	"id": "${CONTENT_DATA.id.iv}",
    "title": "${CONTENT_DATA.Title.iv}",
    "body": "${CONTENT_DATA.body.iv}"
}
]

Is the casing always correct? Is the body localized?

Yes, and no. Surprised title is populated but not body. And why isn’t ID?

I recommend to send the full event to your webhook first for testing. Then you have an example body which you could use. Please post the example here then.