API Authorization issue with Zapier on custom PUT request

[TimS3776]

I'm trying to get information from Zapier into CC using the API. I think I finally have all the code working but when I do the test from the Zapier side I'm getting "the app returned "anauthorized". It seems I'm missing the authorization portion of this code but I'm having a hard time finding any examples of what I need to do after searching. Thanks

Current Code:

{
"email_address": "{{90468520__email}}",
"first_name": "{{90468520__first_name}}",
"last_name": "{{90468520__last_name}}",
"list_memberships": [
"d0f03d12-7217-11eb-9800-fa163edc3efc"
],
"street_address": {
"city": "{{113887163__city}}",
"state": "{{113887163__state}}",
"postal_code": "{{113887163__zip_code}}",
}
}

[Courtney_E]

Thank you for reaching out to Constant Contact API Developer Support. My team is here to assist outside software developers with questions about building into Constant Contact's API.

It looks like we've already followed up with you directly via email, but here is the information provided for visibility on the forum:

Try reformatting the URL request(s) like this:

Contacts Endpoint POST URL:

https://api.cc.email/v3/contacts?client_id=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx&redirect_uri=https:/...

Contacts sign_up_form POST URL:

https://api.cc.email/v3/contacts/sign_up_form?client_id=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx&redirec...