Update dependent's DS160 number in Visa Scheduling Portal with a confirmed appt

How do I update dependent’s DS160 number in Visa Scheduling Portal with a confirmed appt. without closing the current application?

Can customer service folks help?

Primary - H1 (no updates needed)
Dependent - H4 (update DS160 number)
Country - India

Just contact VFS and they will help update.

https://www.ustraveldocs.com/in/en/contact-us#email

Hi

They used to do that previously but have stopped doing that since Nov ‘23.

I had to cancel my appt and rebook with a new ds160.