How to check if the leave balance was updated
The Annual Leave is deducted in the month you take the leave. And it is deducted when Payroll is finalized for that month – typically around the 20th of a month (+- a few days).

But you can always check in the Absence Event page (Global Payroll & Absence Mgmt / Payee Data / Maintain Absences) if a leave period was actually deducted – see below:

The status ‘Processed’ indicates that balances were updated, whereas ‘Not Proc.’ Indicates it was not processed and balances were not updated.