Manage Customers and income
Allow me to clarify things about adding an attachment to invoices, Jose.
To ensure that the attachment is the one you have on the Attachment page in QuickBooks Online (QBO), you'll need to click the Show existing option below the Attach to email field.
By doing so, an Add to Invoice pop-up on the right side will show the list of all the documents you've added to the Attachment page. Then, click Add to include it on the invoice.
Below is a sample screenshot from my QBO test account.
I'm also adding these articles that tackle managing invoices and attachments in QBO for more information:
For more tips and other resources, I recommend visiting our website for future reference: Self-help articles.
Please let me know if you have additional questions about this or anything else in the comment section below. I'm more than willing to assist. Take care.
