Setting up service account roles
To use the APIs set, grant the the following roles to the associated service accountService account is required for the application to perform properly. Set up the account that is associated with the app by granting a number of roles:
impersonator: allows the your service account to impersonate another user.service_account_impersonate: allows the your service account to use the APIs included in this packageof the app.other Other ACLs related to the ServiceNow data potentially requested.
What’s next?
Study the list of APIs: some of them are used to retrieve knowledge base articles and catalog items, but there are some APIs that you can use in extra scenarios.