# Assign fields
The next step after connecting to data is to assign the required columns to the data fields, as shown below:
Assign data fields
You can see the EDITable table getting populated as and when you start assigning the fields one by one.
{% hint style="info" %}
Assign unique fields in the **Primary Keys** field.
{% endhint %}
## Sign In
If you are not already signed in to the visual, click **Sign in.** This is an important step that connects your visual to your EDITable workspace. You also need to sign in to configure the source, columns and other details for your data.
Sign in
Log in with your Microsoft Office 365 account. After confirming the pop-up by clicking **OK**, verify the code to log in.
Log in with O365 account
After signing in, you will see three steps as shown in the image below. Clicking on the links beside each step will take you through the configuration process. Configuring your source and columns is essential before starting to work on your data through EDITable.
