ThankYouEmailMessage
ID of the library message to use for the thank you email. See EmailThankYou and ThankYouEmailMessage.
stringThankYouEmailMessage (string)nullable
ID of the library message to use for the thank you email. See EmailThankYou and ThankYouEmailMessage.
Possible values: Value must match regular expression ^(MS_[a-zA-Z0-9]{11,15})?$
Example:
MS_abcdefg12345ThankYouEmailMessage
"MS_abcdefg12345"