Iso 3166

I keep getting this error when a client submits an enquiry form, then pabby connects to click send in order to create a contact. It will be for Australian customers. What do i need to do to fix this?
{
"http_code": 400,
"response_code": "BAD_REQUEST",
"response_msg": "Invalid input.",
"data > address_country > 0": "You provided an invalid country. Must be in ISO 3166."
}

EDIT - I think I fixed it, it has to be 'AU' ?

Yes you've fixed it.
FYI I'm not from Pabbly Connect team, just a freelancer who helps other Pabbly users.

Yes you've fixed it.
FYI I'm not from Pabbly Connect team, just a freelancer who helps other Pabbly users.