Getting Invalid Access Token Using External Idendity provider

Can somebody help me why i am getting inactive access token that is returned after login using external Identity provider?
I am trying to configure external Identity provider in Okta using SAML2.0.I am using below link for reference
https://developer.okta.com/docs/guides/add-an-external-idp/saml2/create-an-app-at-idp/

After configuration ,i am calling below url as authorization url

https://dev-700118.okta.com/oauth2/v1/authorize?idp=&client_id=<client_id>&
&response_type=token&response_mode=fragment&scope=openid&redirect_uri=&state=WM6D&nonce=YsG76j

User submits form, and if credentials are confirmed, is redirected to redirect_uri with accesstoken as below

redirect_uri#access_Token=<id_Token>

then i am trying to validate that token using below api
`https://{yourOktaDomain}/oauth2/default/v1/introspect
and getting response like that-
{
“active” : false
}

Not sure i am missing something in flow.Could some body help me to find out this issue?

Hi @hemantk

Can you please open a support ticket with us at support@okta.com in order to have the issue further investigated?

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