The ability to authorize requests is enabled using a role which requires a user license. What is this role?

sn_approval_write is not a standard out-of-the-box ServiceNow role for approving workflow requests.

sc_approver is not a recognized baseline ServiceNow role; the correct role name for request authorization is approver_user.

approver alone is not a valid standalone ServiceNow role name; the full correct role name is approver_user.

The approver_user role grants users the ability to act on approval records within ServiceNow workflows, including approving or rejecting requests; because this role provides write access to approval and task records, it requires a paid fulfiller license rather than a requester license.