UUIDs and Opens in Campaign
Hi All,
We were reviewing this documentation and came across a question we couldn't answer that is also reflected in our data.
In all of the examples provided, the OPEN does not have a UUID, except for in the case of "Henry":

We could not find any documentation as what would cause an open to generate a UUID vs not having one. In our own data, it seems fairly sporadic as to whether the UUID is registered with an open or not, with no clear commonalities. The linked documentation is pretty useful in walking people through how recipients, forwards, and people are captured but this element doesn't appear to have any explanation. Any help is appreciated!