[BizTalk] Promote Property in Orchestration

We can easily promote properties in pipeline by code, but how can we promote properties in orchestration ?

Although BizTalk does not provide a built-in function to do this, we can still promote properties in an Orchestration by creating a correlation set and initialize the created correlation set in a send shape (in Direct binding scenario). We don’t have to create a following-correlation-set since the created correlation set is only for promoting properties, not for correlation.

Note that, a correlation set is a set of properties which Orchestrations subscribe them for correlation, since these properties has to be subscribed for routing purpose, these properties are automatically promoted when they were added into a correlation set.