mention query attribute

Author: markwahl-msft

includes/active-directory-app-provisioning-sql.md

@@ -223,7 +223,7 @@ Next, you'll configure the **Export** and **Full import** run profiles.  The **E
 
  14. On the **Object Types** page, fill in the boxes and select **Next**. Use the table that follows the image for guidance on the individual boxes.   
       - **Anchor**: This attribute should be unique in the target system. The Azure AD provisioning service will query the ECMA connector host by using this attribute after the initial cycle. This anchor value should be the same as the anchor value you configured earlier on the **Schema 3** page.
-      - **Query Attribute**: Used by the ECMA connector host to query the in-memory cache. The values of this attribute should be unique for each user.
+      - **Query Attribute**: Used by the ECMA connector host to query the in-memory cache. The values of this attribute should be unique for each user.  You'll refer to this attribute again subsequently in the Azure Portal, when configuring attribute mappings, as an attribute to use for matching.
       - **DN**: The **Autogenerated** option should be selected in most cases. If it isn't selected, ensure that the DN attribute is mapped to an attribute in Azure AD that stores the DN in this format: CN = anchorValue, Object = objectType.  For additional information on anchors and the DN see [About anchor attributes and distinguished names](../articles/active-directory/app-provisioning/on-premises-application-provisioning-architecture.md#about-anchor-attributes-and-distinguished-names).
      ![Screenshot that shows the Object Types page.](.\media\active-directory-app-provisioning-sql\conn-12.png)</br>