@d-healey Ok you are right, it doesn't have directly an id field. Woocommerce user retrieve response is in an array format. So:
var usid = response[0].id; works.
[
{
"id": 12345,
"date_created": "",
"date_created_gmt": "",
"date_modified": "",
"date_modified_gmt": "",
"email": "USER_EMAIL",
"first_name": "",
"last_name": "",
"role": "customer",
"username": "",
"billing": {
"first_name": "",
"last_name": "",
"company": "",
"address_1": "",
"address_2": "",
"city": "",
"postcode": "",
"country": "",
"state": "",
"email": "",
"phone": ""
},
"shipping": {
"first_name": "",
"last_name": "",
"company": "",
"address_1": "",
"address_2": "",
"city": "",
"postcode": "",
"country": "",
"state": ""
},
"is_paying_customer": true,
"avatar_url": "",
"meta_data": [
{
"id": ,
"key": "",
"value": ""
},
{
"id": ,
"key": "",
"value": ""
}
],
"_links": {
"self": [
{
"href": ""
}
],
"collection": [
{
"href": ""
}
]
}
}
]