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As unique as possible per request by following GUID standards.
1.
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5 - TimeStamp
DateTime format requested: yyyy-MM-dd'T'HH:mm:ss+XX:XX, no milliseconds. If no timezone is declared, we assume the PMS is using UTC as this is the default timezone. If a timezone is declared, the time value should reflect the actual local time. The same goes for @CreateDateTime / @LastModifyDateTime.
UTC: “2018-06-20T08:32:52” valueequals GMT+8: “2018-06-20T16:32:52+08:00”
1.
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6 - Day Indicators
if using, make sure it doesn’t restrict updates from being applied. For instance, if the message contains a date range consisting of 2018-12-04 (Tuesday) and 2018-12-05 (Wednesday),Tue="0" and Weds="0" will block the update.
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