Merge pull request #108396 from diberry/diberry/0319-qna-linking-qna-pairs

[Cogsvcs] QnA Maker - linked sets

Author: PRMerger17

articles/cognitive-services/QnAMaker/How-To/edit-knowledge-base.md

@@ -2,7 +2,7 @@
 title: Edit a knowledge base - QnA Maker
 description: QnA Maker allows you to manage the content of your knowledge base by providing an easy-to-use editing experience.
 ms.topic: conceptual
-ms.date: 03/16/2020
+ms.date: 03/19/2020
 ---
 
 # Edit QnA sets in your knowledge base
@@ -50,6 +50,12 @@ Add alternate questions to an existing QnA set to improve the likelihood of a ma
 
 ![Add Alternate Questions](../media/qnamaker-how-to-edit-kb/add-alternate-question.png)
 
+## Linking QnA Sets
+
+Linking QnA sets is provided with [follow-up prompts](multiturn-conversation.md). This is a logical connection between QnA sets, managed at the knowledge base level. You can edit follow-up prompts in the QnA Maker portal.
+
+You can't link QnA sets in the answer's metadata.
+
 ## Add metadata
 
 Add metadata sets by first selecting **View options**, then selecting **Show metadata**. This displays the metadata column. Next, select the **+** sign to add a metadata set. This set consists of one key and one value.