This section allows you to add additional fields for further information you would like to collect from new Suppliers.
Go to Settings and then Portal as shown below:
Click on the blue Add Field button to the right to add a field.
The different types of fields you can create are Text, Checkboxes, Drop-Downs or Radio Buttons.
There is no limit to the amount of custom fields you can add.
The default fields are displayed in the screenshot below: