ThankYouEmailMessageLibrary
Library ID associated with the Message ID in ThankYouEmailMessage.
stringThankYouEmailMessageLibrary (string)
Library ID associated with the Message ID in ThankYouEmailMessage.
Possible values: Value must match regular expression ^(UR|GR)_[a-zA-Z0-9]{11,15}$
Example:
UR_SomeUserId001ThankYouEmailMessageLibrary
"UR_SomeUserId001"