Configure Bearer Token in OIC Connection

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We have basic username and password of E-Verify portal to validate the user. E-Verify portal has 2 step authentication. First one is to pass username and password and get access token. second one is to use the access token for verifying the user.

Since we do not have client id and client credentials, what is the security type we need to select for OIC Connection? Can we use OAuth for configuring the connection?

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