# What is the difference between an Invoice and an Invoice Mail Merge Template?

> Source: https://support.associationsphere.com/what-is-the-difference-between-an-invoice-and-an-invoice-mail-merge-template  |  Updated: 2026-09-08T02:58:45Z

The invoice is the document linked to the transaction. This could be an event purchase, membership, sponsorship, pledge, or other transaction that is outstanding. The Invoice Mail Merge Template is a cover letter that can accompany the invoice. The letter is not directly linked to the transaction. For more information see the article ["What is the Invoice Mail Merge Letter Template?"](./what-is-the-mail-merge-invoice-template)