Generate Access token using client id and secret

Hi All,
i have end point url, client id, client secret. Need to generate access token.
I tried with Postman. Getting the error in the screenshot.

Details of API documentary.
curl --location --request POST ‘{hostName}/{version}/oauth2/token’
–header ‘Content-Type: application/x-www-form-urlencoded’
–header ‘Authorization: Basic [base64.encode(client_id:client_secret)]’
–data-urlencode ‘grant_type=client_credentials’
–data-urlencode ‘client_id=[client_id]’


Hey @jishnu.pnair ! Are you trying to get token to acess Orchestrator via API?

No its for accessing cvent event booking tool.