What setting automatically sends invoices? What does the send later function do?

Sorry, I’m new to this. Thank you for the help.

What if we have, let’s say, 100 customers who purchase from us in a week. How does the invoice go out? Is it done manually or in bulk?

Thanks for choosing QuickBooks Online (QBO) as your accounting partner, @michael-myskinny.

I'm here to further discuss some information about sending invoices in bulk. 

When you batch email the invoices for your 100 customers, they will be sent out individually. This will go to the email address you've entered in the form. 

Once you checked the Send later option in the form, you can filter your sales list to batch email them. Here's how:

1. Navigate to the Bookkeeping menu and select Transactions.
2. Then, choose All Sales.
3. From there, click the Filter option.
4. Next, in the Delivery method dropdown menu choose Send later. Then, click Apply.
5. Check the boxes for the invoices you want to email. To mark them all, click the checkbox at the top of the list.

For your reference, please see this article: Email or print multiple invoices and sales forms.

Additionally, here's a compilation of How-to videos that will further guide you in navigating the program.

You'll also want to modify your invoice templates to make them more personalized and include the details you need the most.

If you have any other concerns about managing your invoices, please leave a reply below. I'm always ready to lend a hand. Have a great week ahead.

My client is very very meticulous on detials like time of sending of th invoice and the covered period in the invoice.

Is there a way to set up time in sending of the recurring invoice?

And also if there is a way that in every recurring invoices the invoice description and Message on invoice is differ from each other like the covered period. Or this should be in generalize statement in setting up a recurring invoice.