A service account is a non-human account to be used to issue API calls to run Talend Cloud Management Console services.
The Service Account - Manage permission is required for a user or a service account to create, grant permissions to or delete service accounts. The ID of this permission is TMC_SERVICE_ACCOUNT_MANAGEMENT. By default, the Security Administrator role has this permission.
In the Service accounts tab of the User & Security page, you can create, grant individual permissions to or delete service accounts.
You can assign the workspace permissions to a service account the same way as you do for users. For further information, see Setting workspace permissions for users.
If you need to use a service account to perform operations such as getting the user list or running a task, use its service account token to issue API calls. This cannot be done in Talend Cloud Management Console. For a step by step demonstration about how to get this kind of token and then issue the API calls, access these endpoints via https://api.talend.com/apis/service-accounts/2021-03/ and related use cases at https://api.talend.com/use-cases/service-accounts/.
The number service accounts you can create depends on the number Talend Cloud admin add-ons specified in your license. Each admin add-on allows to you create 3 service accounts.
Find the related information on the Subscription page. If you need more service accounts and thus more admin add-ons, contact your sales representative.