change of DS 160 before online appointment

[gereftan]

Hi,

I have submitted Ds 160 form but haven;t got appoinment yet.
Can I change the data in the form? If I re-fill a new form ,does any problem occur at interview?
thanks

[pushpausa]

Same appointment time for mom and son

Dear All,

How do we combine the appointment time for mom and son?

While filing we got two DS160 Form. Please clarify.

Thanks
Pushpa