Problem
When trying to email all invoices from a batch, you can't select an invoice.
Solution
You will need to enable notifications for both invoice and statement in the customer record. This setting allows you to email invoices to customers.
Enable notifications in customer profile
Go to the customer profile for a customer in the batch.
On the customer record, go to the Customer Details section and click Edit
on Additional Info. On the Edit Customer screen that opens, scroll down to Invoice & Statement Delivery and select the Email option.
Scroll up to the Contact Details section and click Edit Contact Methods.
On the Edit Contact Methods screen that opens, click Notifications to expand that option.
Select the Invoices/statement notification option.
When finished, click Save.
Repeat steps 1-7 for each customer in the batch.
