When creating Email Templates with custom_fields, it sometimes populates and sometimes doesn't.
As far as I can tell Its related to how quickly the email client (Outlook), picks up the request.
If the email is sent within a few seconds, then the custom field is not populated, but if there is a delay of a few minutes, then the custom field is populated correctly.
is there a way to perhaps delay the email being sent so that the custom field has tome to populate properly.