If you have more recipients in your list than your daily quota, you can tell YAMM to send automatically your message to the remaining recipients when your quota renews.
Case 1: My remaining quota is not enough for the rest of my campaign
Once you sent your first campaign, if you still have some quota but not enough to send to everyone for your next mail merge, you can choose to use all your quota now, and automatically send the rest later.
To do so, click 'Send x emails':
You'll be then notified with the following screen:
Simply click 'OK' and YAMM will automatically send your emails to the rest of your Google Sheets as soon as your quota resets.
The mention 'SCHEDULED' will appear in the 'Merge status' column to inform you that the concerned rows (3 & 4) will be automatically processed by the add-on:
Case 2: I don't have quota at all
If you reach your daily quota and if you still have emails to be sent (there are still rows to be processed at the bottom of your spreadsheet), you will receive this notification:
By clicking 'Delay delivery', you are activating this option and asking YAMM to send automatically the remaining emails.
If you enable this option, YAMM will check every hour if your quota has been renewed. When it's the case, it will continue your mail merge until it reaches the end of your spreadsheet: