Update faq.md

added FAQ question on collapsing all source data into one warehouse schema

Author: charholt

src/connections/storage/warehouses/faq.md

@@ -194,3 +194,8 @@ To change the name of your schema without disruptions:
 ## Can I selectively filter data/events sent to my warehouse based on a property?
 
 At the moment, there isn't a way to selectively filter events that are sent to the warehouse. The warehouse connector works quite differently from our streaming destinations and only has the [selective sync](/docs/connections/storage/warehouses/warehouse-syncs/#warehouse-selective-sync) functionality that allows you to enable/disable specific properties or events.
+
+## Can data from multiple sources be synced to the same database schema?
+Currently, it's not possible for different sources to sync data directly to the same schema in your warehouse. When setting up a new schema within the Segment UI, you can't use a schema name that's already in use by another source. Our recommendation is to sync the data separately and then join it downstream in your warehouse. 
+
+For more information about Warehouse Schemas, see the [Warehouse Schemas](/docs/connections/storage/warehouses/schema) page.