Log into OneLogin, Click "Administration"

Click "Applications" and you will select Add App in the top right corner and select OpenID Connect (OIDC)

Edit the name to "OpenId Connect (OIDC) - 1Password" This is where you will create the SSO instance for 1Password. Once created, you will go to SSO tab and copy the Client ID, Well-Known Configuration URL

Navigate to https://otgexp.1password.com and go to Security -> Unlock with Identity Provider
