There are several common reasons why no adverts appear in the Advert Log after clicking the Schedule button, and most relate to missing prerequisites or configuration issues.

The most likely cause is that there are no Advert Block items in your playout log for the date range you're trying to schedule. The advert scheduler only looks at the playout log, not at clocks, so you must first schedule your playout log to generate the Advert Block items before you can schedule adverts. Go to your playout log management and schedule the dates first, then return to the Advert Log to click Schedule.

Check that your Advert Campaigns are properly configured and not disabled. Go to Manage > Advert Campaigns and verify that campaigns are not marked as Disabled in the campaign settings. Disabled campaigns will not be considered by the automatic scheduler regardless of other settings.

Verify the Date Range settings in your campaigns. Each campaign has a date range that determines when it can be scheduled. If you're trying to schedule dates outside the campaign's configured date range, those adverts won't be selected. You can manually schedule campaigns outside their date ranges, but the automatic scheduler will only consider campaigns within their valid date periods.

Ensure your individual Adverts within campaigns have appropriate Plays configured for the time periods you're scheduling. In the advert editor, check the Plays section grid to confirm that adverts are set to play during the specific hours and days you're targeting. If all cells show zero plays for your target time period, no adverts will be scheduled for those slots.

Finally, confirm you have the Advanced Scheduling module licence active, as advert scheduling is a premium feature that requires this module to function properly.