Good point... sometimes I focus too much on the Profile, thanks for reminding everyone.

That is my understanding, but I haven't tested this specific scenario.  Worth testing out.

ID Graph ViewerProfile APIID Graph APIQuery Service on the Profile Snapshot Export xxx dataset

@ChetanyaJain @Luca_Lattarini You might want to test it out, but I believe field 2 in your example @ChetanyaJain ends up evaluating to "def".

@Luca_Lattarini Two very different things: Class is used to create a Schema and defines the essence and behavior of the Schema https://experienceleague.adobe.com/docs/experience-platform/xdm/schema/composition.html?lang=en#class Field Group is then used to extend the Schema (i.e. add more than the b...

@Luca_Lattarini Without knowing more, it is hard to provide any guidance.  Can you expand a bit?

@Luca_Lattarini  "No Timestamp"?  Sounds like a data quality issue in your source system that needs to be fixed If a duplicate _id for an Event is loaded into the same dataset (as part of a subsequent Event), it will be ignored or cause an error.

@Luca_Lattarini A challenge to keep in mind (the speed of which both the Profiles are updated and the segments are updated, they both could be streaming): Open a few Sample Profiles and spot checkQuery Service to look at Segment Membership in the Profile Snapshot Export xxx dataset (if latency is no...

- for descendingnothing for ascending (just timestamp)

@Luca_Lattarini Remember that the ID Graph and Profile store are separate.  While two identities being sent in an Event marked for Profile should appear in both, I'd check both when troubleshooting.   @Luca_Lattarini @ChetanyaJain When using the UI to look for Events, remember it caps at some point ...