Hello GaBriella,
You can delete users from the User Graph using the below SPARQL Query in the SPARQL Endpoint, where you replace “User” with the actual username of the account you want to remove, as "urn:x-tb-users:User" is supposed to be URI for the user. You will not need to select "urn:x-evn-user-data" in the Default Graph dropdown as the WHERE clause determines the Default Graph already.
Please note that query this removes users from the directory and the dropdowns, but those users will still be on "created" and "updated by" fields as well as on the users tab and governance collection.
DELETE { GRAPH <urn:x-evn-user-data> {<urn:x-tb-users:User> ?p ?o }}
WHERE { GRAPH <urn:x-evn-user-data> {<urn:x-tb-users:User> ?p ?o }}
Thank you,
Brandy