How to Set the DFF value dynamically, I.e Based on other fields on Purchase order?

Hello,

Is there any Feasibility to write a groovy script  to set the DFF value? Based on other standard fields. We are not able to find the groovy trigger concept on oracle SCM as in Oracle Sales cloud. Is there any alternative approach for this requirement?

Ex :

def cust=CustomDFF;

def std1=StandardField1

def  std2=StandardField2

def Calculatedfiled=StandardField1+StandardField2

setAttribute('cust', Calculatedfiled);

Regards,

Ramesh