Update according to comments

Author: Clare Zheng (Shanghai Wicresoft Co Ltd)

articles/data-factory/connector-servicenow.md

@@ -113,7 +113,7 @@ To copy data from ServiceNow, set the type property of the dataset to **ServiceN
 |:--- |:--- |:--- |
 | type | The type property of the dataset must be set to: **ServiceNowV2Object** | Yes |
 | tableName | Name of the table. | Yes |
-| valueType | The type of ServiceNow table values. The value of this property can be `display` or `actual` (default). You can look at it as the parameter of `sysparm_display_value` as true or false when calling [ServiceNow REST APIs](https://developer.servicenow.com/app.do#!/rest_api_doc?v=jakarta&id=r_AggregateAPI-GET). The column name for actual value is `[column name]_value`, while for display value is `[column name]_display_value`. | No |
+| valueType | The type of ServiceNow table values. The value of this property can be `display` or `actual` (default). You can look at it as the parameter of `sysparm_display_value` as true or false when calling [ServiceNow REST APIs](https://developer.servicenow.com/app.do#!/rest_api_doc?v=jakarta&id=r_AggregateAPI-GET). | No |
 
 **Example**
 
@@ -146,7 +146,7 @@ To copy data from ServiceNow, set the source type in the copy activity to **Serv
 | Property | Description | Required |
 |:--- |:--- |:--- |
 | type | The type property of the copy activity source must be set to: **ServiceNowV2Source** | Yes |
-| expression| Use the expression to read data. You can configure the expression in **Query builder**. It has the same usage as the condition builder in ServiceNow. For instructions on how to use it, see this [article](https://docs.servicenow.com/bundle/vancouver-platform-user-interface/page/use/common-ui-elements/concept/c_ConditionBuilder.html). You can also [use expression parameters](#using-expression-parameters).| No |
+| expression| Use the expression to read data. You can configure the expression in **Query builder**. It has the same usage as the condition builder in ServiceNow. For instructions on how to use it, see this [article](https://docs.servicenow.com/bundle/vancouver-platform-user-interface/page/use/common-ui-elements/concept/c_ConditionBuilder.html). You can also [use expression parameters](#using-expression-parameters). Note that you should use the actual value instead of the display value.| No |
 | *Under `expression`* |  |  |
 | type | The expression type. Values can be Constant (default), Unary, Binary, Field and Nary.  | No  |
 | value | The constant value. |Yes when the expression type is Constant or Field |
@@ -283,7 +283,7 @@ The ServiceNow V2 connector offers new functionalities and is compatible with mo
 | SQL-based queries are not supported. | Support SQL-based queries. | 
 | sortBy queries are not supported in **Query builder**. | Support sortBy queries in **Query**. | 
 | You can view the schema in the dataset. | You can't view the schema in the dataset. |
-| You can configure `valueType` to `display` or `actual` in datasets to see the display or actual value of the table.| The display or actual value is present in the table with "Display" or "Actual" prefix appended. |  
+| You can configure `valueType` to `display` or `actual` in datasets. The display or actual table name is used as the value of `tableName`. <br><br>The column name is `[column name]` for both display and actual value.| The display or actual table name with "Display" or "Actual" prefix appended is used as the value of `tableName`.<br><br>The column name for actual value is `[column name]_value`, while for display value is `[column name]_display_value`.|  
 
 ## Related content
 For a list of data stores supported as sources and sinks by the copy activity, see [supported data stores](copy-activity-overview.md#supported-data-stores-and-formats).