Updated for column mapping

Author: Samantha-Yu

articles/data-factory/media/tutorial-copy-data-tool/column-mapping.png

@@ -46,8 +46,9 @@ Prepare your Blob storage and your SQL Database for the tutorial by performing t
 1. Launch **Notepad**. Copy the following text and save it in a file named **inputEmp.txt** on your disk:
 
     ```
-    1|John|Doe
-    2|Jane|Doe
+    FirstName|LastName
+    John|Doe
+    Jane|Doe
     ```
 
 1. Create a container named **adfv2tutorial** and upload the inputEmp.txt file to the container. You can use the Azure portal or various tools like [Azure Storage Explorer](https://storageexplorer.com/) to perform these tasks.
@@ -126,7 +127,7 @@ Prepare your Blob storage and your SQL Database for the tutorial by performing t
 
     b. Click **Next** to move to next step.
 
-1. On the **File format settings** page, notice that the tool automatically detects the column and row delimiters. Select **Next**. You also can preview data and view the schema of the input data on this page.
+1. On the **File format settings** page, Enable the checkbox for *First row as header*. Notice that the tool automatically detects the column and row delimiters. Select **Next**. You can also preview data and view the schema of the input data on this page.
 
     ![File format settings](./media/tutorial-copy-data-tool/file-format-settings-page.png)
 1. On the **Destination data store** page, completes the following steps:
@@ -143,7 +144,7 @@ Prepare your Blob storage and your SQL Database for the tutorial by performing t
 
 1. On the **Table mapping** page, select the **[dbo].[emp]** table, and then select **Next**.
 
-1. On the **Column mapping** page, notice that the second and the third columns in the input file are mapped to the **FirstName** and **LastName** columns of the **emp** table. Select **Next**.
+1. On the **Column mapping** page, notice that the second and the third columns in the input file are mapped to the **FirstName** and **LastName** columns of the **emp** table. Adjust the mapping to make sure that there is no error, and then select **Next**.
 
     ![Column mapping page](./media/tutorial-copy-data-tool/column-mapping.png)