Merge pull request #5173 from segmentio/courtneyga-patch-4

Invalid Token Error Solution

Author: rchinn1

src/connections/destinations/catalog/actions-snap-conversions/index.md

@@ -36,6 +36,12 @@ The Snapchat Conversions API destination provides the following benefits:
 
 ## FAQ and Troubleshooting
 
+### Invalid token error
+If you're experiencing 400 Bad Requests errors related to an invalid token, follow [these instructions](https://segment.com/docs/connections/destinations/catalog/actions-snap-conversions/#getting-started) to reauthorize your account: 
+- On the **Settings** tab, authenticate with Snap using OAuth. 
+- Click **Connect to Snapchat Conversions API**. 
+- Follow the prompts to authenticate using OAuth with a Snapchat login. Use a Snapchat login that is a member of the Snapchat Ads account you want to connect.
+
 ### Deduplication with the Snap Pixel or App Ads Kit (SDK)
 There are many ways to send conversion data to Snap, including through the Snap Pixel, App Ads Kit or Conversions API. Snap recommends sending redundant data across sources to ensure the best optimization, targeting, and measurement capabilities. The Client Deduplication ID, Transaction ID, and Mobile Ad Identifier are used by Snap to deduplicate events across sources. Please see below for guidance on when to use each field for deduplication.
 - **Web**: Snap Conversions API and PixeI