Any letter, personalized for your whole customer list
Any Word letter, personalized for every customer in QuickBooks or Excel.
The one-off letter that goes to everyone
Price-change announcements. Policy updates. Holiday thank-yous. Address labels for a mailing. The letter takes ten minutes to write, and then hours to personalize, because every copy needs the right name, company, and address, and Word's merge wizard fights you the whole way.
Write once, merge for everyone
MergeNinja keeps your customer list synced from QuickBooks Online (read-only): names, emails, addresses, balances, or takes an Excel/CSV upload if your list lives in a spreadsheet. Any Word document with merge fields works: letters, notices, even label sheets.
Because the list lives in the cloud and stays current, the next mailing starts from the merge button, not from another export.
How it works
- 1
Connect QuickBooks or upload Excel
Your customer list syncs read-only from QuickBooks, or comes straight from a spreadsheet.
- 2
Write the letter in Word
Drop in merge fields where the personal details go: name, company, address, balance.
- 3
Merge the batch
One personalized copy per customer, delivered to your inbox ready to print or send.
Frequently asked questions
Can I print address labels with it?
Yes. A label sheet is just a Word template with merge fields. Merge your customer addresses into it like any other document.
Can I send the letter to only some customers?
Yes. Filter the synced list before merging, or upload an Excel file containing exactly the customers you want.
Do I need QuickBooks to use this?
No. Excel or CSV upload works on its own. QuickBooks and Stripe are there when you want the list to stay synced automatically.
What customer fields can the letter use?
From QuickBooks: name, company, email, phone, address, and balance fields. From Excel: whatever columns your spreadsheet has, you map them once.
Related
Stop exporting. Start merging.
Connect your data, upload your Word template, and send every customer document in one click.
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