%datetime% : Coordinated Universal Time (UTC) date time in the format YYYY-MM-DDThhmmss (for example, 1997-07-12T103508)
%datetime_bts2000% : UTC date time in the format YYYYMMDDhhmmsss, where sss means seconds and milliseconds (for example, 199707121035234 means 1997/07/12, 10:35:23 and 400 milliseconds).
%datetime.tz% : Local date time plus time zone from GMT in the format YYYY-MM-DDThhmmssTZD, (for example, 1997-07-12T103508+800).
%DestinationParty% : Name of the destination party. The value comes from message the context property BTS.DestinationParty.
%DestinationPartyID% : Identifier of the destination party (GUID). The value comes from the message context property BTS.DestinationPartyID.
%DestinationPartyQualifier% : Qualifier of the destination party. The value comes from the message context property BTS.DestinationPartyQualifier.
%MessageID% : Globally unique identifier (GUID) of the message in BizTalk Server. The value comes directly from the message context property BTS.MessageID.
%SourceFileName% : Name of the file from where the File adapter read the message. The file name includes extension and excludes the file path, for example, foo.xml.
%SourceParty% : Name of the source party from which the File adapter received the message.
%SourcePartyID% : Identifier of the source party (GUID). The value comes from the message context property BTS.SourcePartyID.
%SourcePartyQualifier% : Qualifier of the source party from which the File adapter received the message.
%time% : UTC time in the format hhmmss.
%time.tz% : Local time plus time zone from GMT in the format hhmmssTZD (for example, 124525+530)