How to set up recurring invoices for: multiple people, with different payment amounts, each month requiring different dates to indicate what period that payment covers

 Hello there, Nancy. 

I can provide additional information about using a recurring transaction. 

You can establish a timetable for your invoices by inputting a recurring transaction in QuickBooks Online (QBO). This recurring transaction generates a sequence of transactions based on the schedule you define. Here's how:

1. Sign in to your QBO account.
2. Click the Gear icon, then select Recurring transactions.
3. On the page, select New and choose Invoice from the Transaction Type drop-down. Then, click OK.
4. Enter the template name, then select Scheduled from the Type drop-down.
5. Fill out the necessary information.
6. Click Save template.

You can also utilize this article for more details: Create recurring transactions in QuickBooks Online.

To utilize the previously created template, you can revisit the Recurring Transaction page and choose the corresponding recurring invoice template. Here are alternative ways to express the instructions:

1. On the top-right corner, click the Gear icon.
2. Select Recurring transactions.
3. Locate the recurring invoice template you created and click the Dropdown arrow beside Edit.
4. Select Use.
5. Review details inside the invoice, and then click Save and send once you're ready.

Furthermore, I'm adding this resource that can help you in accounting for your customer payments: Record invoice payments in QuickBooks Online.

You can always count on me if you need more help with your invoice and QBO. Simply leave the details in your reply and I'll take care of them for you.