Create a Custom List Field in the Purchase Order Form

Scenario: 

Customer would like to add a custom field on their purchase order form. This field is a list type field that will show the list of their employees. 

In this example, customer is adding a "submission in behalf of" on the PO/Request form. The same steps can be used for other transactions other that purchase order. 

Here are the steps 

1. Purchase Order>Customize>Customize Form 
2. Screen Fields>Main>New Field 
3. Name the field :  Submission on behalf of 
4. Type=List 
5. List/Record field=Employee 
6. Applies to = check the Purchase box 
7. On the Display tab , set Subtab = Main 
8. Then save 
9. Go back to 
10. Purchase Order>Customize>Customize Form 
11. Screen Fields>Main
12. Make sure that the Name the field :  Submission on behalf of  show box is checked. You can just highlight the line and drag it upward or downward next to the line you want. Make sure that you also select the section you want it to be under either on the Primary Information, Classification etc. Please see screenshot below. 
    

When you view the purchase this field would show up. See sample screenshot below.