1. Procure Token

Grab the credentials that you received in the partner developer portal here

Update the curl sample below with the client_id and client_secret

curl --request POST \
     --url https://auth-pp.blackhawknetwork.com/realms/dev-experience/protocol/openid-connect/token \
     --header 'accept: application/json' \
     --header 'content-type: application/x-www-form-urlencoded' \
     --data grant_type=client_credentials \
     --data client_id=client_id \
     --data client_secret=secret

In the response grab your access token

{
  "access_token": "<access_token>",
  "expires_in": 300,
  "refresh_expires_in": 0,
  "token_type": "Bearer",
  "not-before-policy": 0,
  "scope": "profile email custom-mapper tenantid"
}