Add deduplication FAQ

Author: kdaswani

src/connections/destinations/catalog/tiktok-conversions/index.md

@@ -44,6 +44,10 @@ The TikTok Conversions destination is configured to use the TikTok Events API. T
 
 ## FAQ & Troubleshooting
 
+### Deduplication with the TikTok Pixel
+
+If you independently placed the TikTok Pixel on your website, please reach out to your TikTok representative to understand if there are any changes necessary to your Pixel, to properly deduplicate events sent through both the Pixel and the Segment TikTok Conversions destination.
+
 ### Match Keys
 
 To increase the probability of matching website visitor events with TikTok ads, please send one or more of the following match keys and identifiers when possible:
@@ -75,4 +79,4 @@ You can check whether the integration is working, test events in real-time, and
 ## Support
 
 - For general Segment questions, including issues with event data not being sent to TikTok Events Manager, please contact [Segment support](https://segment.com/help/){:target="_blank"}.
-- For questions regarding campaign setup and performance, web tracking, or additional API functionality, please contact your TikTok representative.
+- For questions regarding campaign setup and performance, web tracking, or additional API functionality, please contact your TikTok representative.