diff --git a/src/engage/trait-activation/id-sync.md b/src/engage/trait-activation/id-sync.md
index af30049f23..0c77339769 100644
--- a/src/engage/trait-activation/id-sync.md
+++ b/src/engage/trait-activation/id-sync.md
@@ -72,4 +72,7 @@ With Customized setup, you can choose which identifiers you want to map downstre
 Audiences without ID Sync aren't allowed to select any strategy, and by default will send all values of an identifier to the destination. Also, audiences without ID Sync don't send any custom identifiers that are present in your space. 
 
 #### Can I edit config once the audience has synced? 
-Yes, you can edit configuration in the Destination **Settings** tab at any time. However, changes will only take place in subsequent audience syncs, or in new audiences connected to the destination.
\ No newline at end of file
+Yes, you can edit configuration in the Destination **Settings** tab at any time. However, changes will only take place in subsequent audience syncs, or in new audiences connected to the destination.
+
+#### Where are traits added onto Track calls?
+When you use ID Sync with a Track call, all custom identifiers and traits will be added to the `properties` object except the `email` field. The `email` field, if it exists, will populate in the `context.traits` object.