I'm glad to have you here, @j-whalley. I'm here to assist you today in viewing all your sent invoices in QuickBooks Online (QBO).
Currently, tracking the emails sent with the invoices is unavailable. However, you can run a report and customise it to show the Sent Column as a temporary solution. The Invoice List report can be employed to review all invoices sent out.
Here's how:
I've added this short clip for reference.
Furthermore, QuickBooks Online maintains a record of emails through the platform. This record can be viewed in either the Audit Log or Activity Log section, depending on the specific version of QBO you are using.
I encourage you to visit these resources that'll help you save the current filter of the report, so you won't have to repeat the customisation process over again:
Feel free to click the Reply button if you need additional assistance managing invoices. I'll get back to provide the answers you need.
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