Update troubleshoot-confluence-onpremises-connector.md

Documentation bug update. Please refer to this ADO link to get more detailed requirements. https://o365exchange.visualstudio.com/O365%20Core/_workitems/edit/4508962

MicrosoftSearch/troubleshoot-confluence-onpremises-connector.md

@@ -26,4 +26,24 @@ description: "Troubleshoot issues with the Confluence On-premises Graph Microsof
 | Connection settings | The client doesn't have permission to perform the action. | Invalid password provided for Basic auth |
 | Select properties | No preview results | Check your CQL query whether it's valid and matches the content to crawl |
 
-If you have any other issues or want to provide feedback, write to us [aka.ms/TalkToGraphConnectors](https://aka.ms/TalkToGraphConnectors).
+If you have any other issues or want to provide feedback, write to us [aka.ms/TalkToGraphConnectors](https://aka.ms/TalkToGraphConnectors).
+
+# Test your connection
+### a) To check active pages on confluence instance
+### b) To check the list of spaces that account has access to
+
+Please run the below URL in browser or postman with the same cred used for connection creation.
+Note: Confluence space API will fetch maximum 500 spaces in a call, so we can split the request if we have more spaces
+
+The URL is <ConfluenceURL/rest/api/space?limit=500&start=0>
+
+At the end of response we can see output similar to:
+
+```
+  "start":0,
+  "limit":500,
+  "size":500,
+```
+
+For more than 500 pages, to get next set of pages of response run the URL in following format:
+The URL is <ConfluenceURL/rest/api/space?limit=500&start=500>