To avoid manychat duplicate contacts in highlevel, please watch these videos
Syncing using Highlevel triggers
https://www.loom.com/share/70047ec1a2834bce9ed0102d835329a5
Using External Request to update contact instead of duplicating contact
https://www.loom.com/share/1c05ad65de8d4bbdae71e0c557e79a4d
https://api.gohighlevel.com/zapier/contact/add_update
Headers
AUTHORIZATION = Bearer APIKEY
Content-Type = application/json
body
{
"first_name": {{first_name|fallback:""|to_json:true}},
"last_name": {{last_name|fallback:""|to_json:true}},
"email": {{email|fallback:""|to_json:true}},
"phone": {{phone|fallback:""|to_json:true}},
"tags": "{{gaf_695533}}",
"what_do_you_expect_to_be_the_biggest_hurdle_you_will_face_during_this_challenge": "{{gaf_695554}}",
"starting_total_inches": "{{gaf_695551}}"
}