Remove 3-way Switch

[SmarterThings2 (Claude C)]

I’m installing a smart switch and need to convert a pair of three way switches into just one smart switch. Given the two switches wired as below, can someone direct me on the steps?

[Automated_House (Jimmy)]

Need to know what other wires are in those boxes.

[SmarterThings2 (Claude C)]

That’s tough to say on the first (likely hot) one, as it is a 4-gang. Right behind this switch are two black in a wire nut. Nothing visible behind second switch.

[Navat604 (R.)]

There’s a reason why @Automated_House was telling you to identify other wires as well is because there are many other options for 3 ways wiring so it’s hard to guess without enough info. Have a look at this wiring options
3 Way Switch Wiring Diagram

And here for hooking a smart switch.

[FAQ] GE 3-Way Wiring

I’ve decided to put this FAQ together to help those with questions about installing GE 3-way switches. Definitions of terms: Line: The hot wire from the breaker (usually black) Neutral: The return wire for circuits (usually white) Load: The wire that will be hot when the circuit is completed to your light (usually black) Traveler: In existing 3-way wiring, this wire toggles hot between two switches. In a smart switch 3-way configuration, a smaller charge is looped through the add-on switch. Some things to know: 3-way wiring for smart switches is different than standard 3 way wiring. You cannot use dumb 3-way switches with most smart switches (You must purchase the matching GE add-on switch to wire with your GE smart master switch). If the line is wired into the light fixture, you …

[SmarterThings2 (Claude C)]

Very helpful. Thanks! I now know enough to call an electrician.