Merge setup into Overview

Author: rchinn1

src/engage/trait-activation/index.md

@@ -4,12 +4,40 @@ beta: true
 plan: engage-foundations
 redirect_from: 
 - 'engage/trait-activation/overview'
+- 'engage/trait-activation/trait-activation-setup'
 ---
 
 Use Trait Activation to configure sync payloads that you send from Engage Audiences and Journeys to a Destination. Map traits from user profiles to Destinations, configure identifiers to sync, and choose a sync strategy that fits your use cases. 
 
 Trait Activation includes both [Trait Enrichment](/docs/engage/trait-activation/trait-enrichment/) and [ID Sync](/docs/engage/trait-activation/id-sync/). With Trait Enrichment, use custom, SQL, computed, and predictive traits to enrich the data you map to your destinations. Use ID Sync to select identifiers and a sync strategy for each identifier when syncing Engage Audiences to Destinations.
 
+
+## Trait Activation setup
+
+To get started with Trait Activation, you'll need to set up the destination that you'll use with [Trait Enrichment](/docs/engage/trait-activation/trait-enrichment/) and [ID Sync](/docs/engage/trait-activation/id-sync/).  
+
+
+### Set up your destination
+
+Select your Destination, view its Segment documentation, then follow the corresponding required setup steps. 
+
+
+|-----------------------|---------------|
+|Destination            |  Type         |  
+| [Facebook Custom Audiences](/docs/connections/destinations/catalog/personas-facebook-custom-audiences/) | List |
+| [Google Ads Remarketing Lists](/docs/connections/destinations/catalog/adwords-remarketing-lists/#overview) | List | 
+| Trait Activation also supports all cloud-mode [actions-based destinations](/docs/connections/destinations/actions/#available-actions-based-destinations). |         | 
+
+### Resyncs 
+
+Segment recommends creating a new audience for Trait Enrichment and ID Sync. For existing audience destinations, both Trait Enrichment and ID Sync won't resync the entire audience. Only new data flowing into Segment will adhere to new trait settings. 
+
+[Contact Segment support](https://segment.com/help/contact/){:target="_blank"} if you'd like your Audience resynced with Trait Enrichment and ID Sync. 
+
+> warning ""
+> For Audiences larger than 50 million users, it may take several hours, or even days, to sync. Only one resync is allowed at a time for each workspace. 
+
+
 ## Use cases 
 
 Trait Enrichment and ID Sync can help you:
@@ -25,8 +53,8 @@ Trait Enrichment and ID Sync can help you:
 
 To learn more about Trait Activation, visit the following docs:
 
-- View [Trait Activation Setup](/docs/engage/trait-activation/trait-activation-setup/) to view supported destinations and learn how to get started.
-- Learn more about how to use [Trait Enrichment](/docs/engage/trait-activation/trait-enrichment/) and [ID Sync](/docs/engage/trait-activation/id-sync/).
+- Learn more about how to access Segment profile traits when you sync Audiences and Journeys to Destinations with  [Trait Enrichment](/docs/engage/trait-activation/trait-enrichment/).
+- Learn how to sync select identifiers and create a sync strategy with [ID Sync](/docs/engage/trait-activation/id-sync/).