Create a Default Vendor Message on Purchase Orders

To create the custom field, perform the following steps:

1. Navigate to Customization > Lists, Records, & Fields > Transaction Body Fields > New.
    
2. Provide a Label.
    
3. Unmark Store Value.

4. Select Free-Form Text in the Type dropdown menu
    
4. In the Applies To tab, mark Purchase.
    
5. In the Display tab, select the Subtab (e.g. Main).
    
6. In the Display tab, set Display Type to Inline Text.
    
7. In the Validation & Defaulting tab, enter the custom message in the Default Value box.
    
     Note: Formula should not be marked.
    
8. Click Save.