On average your metrics are updated every 24 hours.
However, sometimes these updates can be delayed due a number of factors. Even under the worst of conditions, your metrics shouldn't take more than 48 hours to update.
You can always see the time time since the last sync by looking at the Sync button in the lower left corner.
To see the exact time and date of the latest update, click on Sync.
The time of the update is not fixed and may vary depending of number of factors. Contact the Inventory Planner team (through support chat in the lower right corner) to schedule the sync process to run at particular time on demand.
You can always trigger the sync process manually from the Sync button to pull your latest data.