Which of the following statements about adding a new custom field in QuickBooks Online Plus are correct? Select all that apply.

1. You can add up to 3 custom fields to sales forms and purchases orders
2. Custom fields are included on printed and emailed forms by default
3. You can add up to 12 custom fields to sales forms, but only 3 to purchase orders
4. You can add the same custom field to sales forms and purchase orders
5. You can add a custom field to either sales forms or purchase orders, but not both