Can I test a field without UI API?

Hi all!

In sales order I have created a user field in rows. It contains a date.

Now I'd like to know, if it is possible to test this field withot SKD UI API.

In particular this field, must be greater than Delivery date (ORDR.DocDueDate).

Thanks in advance for your help.

Kindest regards,

Veronica Vezzali