/* Ex. 1.- Customers to change in a variable */
DEF VAR lista AS CHAR INITIAL '12345,12346,12347,14234,17423,12784'.
FOR EACH customer_table.
IF LOOKUP (STRING(custid),lista) > 0 THEN
customer.slsno = "T23".
END.
/* Ex. 2.- Customers to change in a text file (one per row)*/
INPUT FROM lista.txt...