This account is used by the Snaps in the Essbase Snap Pack.
You can create an account from Designer or Manager. In Designer, when working on pipelines, every Snap that needs an account prompts you to create a new account or use an existing account. The accounts can be created in or used from:
In Manager, you can navigate to the required folder and create an account in it (see Accounts). To create an account for Essbase: