Testing MFA using sandbox account

Question

I'm having problem testing MFA using the sandbox environment. Posting to the connect/step endpoint is returning 401:

curl -X POST https://tartan.plaid.com/connect/step -d client_id=test_id -d secret=test_secret -d access_token="test" -d mfa="tomato"
{
  "code": 1108,
  "message": "invalid type",
  "resolve": "This institution is not currently supported."
}

Is it possible to test MFA using the sandbox environment?

Answer 1

You have to explicitly set the type in sandbox mode.

So add -d type=whatever_institution to your curl.

Consider

as the beginning of the mfa process and then

as the next step in the sequence.