Merge pull request #6884 from segmentio/ashton-huxtable-patch-1

Add note about nested properties

Author: forstisabella

Diff for: src/connections/destinations/catalog/facebook-pixel/index.md

@@ -239,5 +239,9 @@ If someone saw or clicked on your ad on a mobile phone then later came back dire
 
 Facebook Pixel events typically don't display in real-time within the Facebook Ads Manager or other reporting interfaces. While Facebook Pixel events are tracked in near real-time, there might be some delay before you see them in your reporting. Visit [Facebook's documentation](https://www.facebook.com/business/help/147965221941551){:target="_blank"} to learn more. 
 
+### Blocklisting nested properties 
+
+Segment does not handle nested properties that need to be blocklisted, including the standard PII properties. If you have properties you would like to blocklist, you can use [destination filters](/docs/connections/destinations/destination-filters/) to drop those properties before they are sent downstream. 
+
 
 {% include content/client-side-script-unverified.md %}