The customer is required to make a request as follows (example is in curl)
curl --location --request POST 'https://insightsb2b.auth-periculum.app/realms/prod/protocol/openid-connect/token'
--header 'Content-Type: application/x-www-form-urlencoded'
--data-urlencode 'client_id=customer_client_id'
--data-urlencode 'client_secret=customer_client_secret'
--data-urlencode 'grant_type=client_credentials'