Expenses created as batch claims get sent to Payroll after the Claims export is run.
However, expenses submitted from Self Service get sent to Payroll once the Expenses export is run. This will always be done by your Payroll Agent and does not need to be actioned by employees.
If you have confirmed with the approver of the expense that this has been correctly submitted and approved, please reach out to your Payroll Agent and they will be able to check if this month's export has been run or not.