With Banqup, you can send invoices to your customers via email. If you'd like to check whether an invoice has been delivered properly to your customer, you can view the timeline of events in the document details:
Go to your Accounts receivable.
In the status column, the status Delivery failed indicates the invoices that could not be delivered.
In the Events tab, you can also see that your email has bounced.
What do I do if my email has bounced?
If your email has bounced (i.e. was not delivered to your customer), the email address it was sent to is probably wrong. To fix it: