If you get this error:
{
"httpCode": "401",
"httpMessage": "Unauthorized",
"moreInformation": "Client id not registered."
}
You most likely haven't enabled your APIs yet on our developer portal. To solve this, you need to log in and go to your app and scroll down to the APIs to this app part. Then click Enable API on under both AIS and PIS.
You will also get another error message if your API is not enabled
not registered to plan