Is there a way to receive payments across multiple invoices at once or bulk receive payments?

Glad to have you here in the Community, @harsh2.

QuickBooks Online (QBO) allows you to receive payments for multiple invoices. However, this is only applicable if the invoices are for the same customer.

Here's how:

1. In your QBO account, click the + New button and select Receive payment.
2. Select the customer from the drop-down.
3. In the Outstanding Transactions section, put a checkmark to the invoices you want to receive.
4. Click Save and close.

I'm adding this article for more details: Record invoice payments in QuickBooks Online.

But if the invoices aren't for the same customer, this option isn't available. You may consider selecting each customer and receive the invoices.

Also, just in case you want to send invoices from your Gmail address in the future, here are some articles you can read for the detailed information:

• Use your Gmail address to send invoices.
• Send invoices from your Gmail address FAQ.

Please post a reply below if you have other concerns with your invoices in QuickBooks Online. I'll be more than happy to assist you again. Have a great day and take care always.