Hi Damon,

I thought thats where you  are suppose to input values, actually i have a
number field and will be inputing numbers in that field if i have control
source abc.tbl connected to that perticular field in form then can it update .

customer No .......................
Customer Name ..................
City                   .................
Service type        ................
this are all combo box  in my form linked to table customer if i in put
values in this combo box i thought this will update my table too.

I have another field in my same form i.e

Telephone lines  (number) linked from another table .

I guess i am all confused now.