How do I connect with Yuki?

Yuki is a popular online accounting software that many accountants use. Through NumNum, you can send invoices, credit notes and other documents directly to your accountant’s Yuki inbox.

How does the integration work?

Yuki uses an email inbox to receive documents. Each Yuki file has a unique email address to which you can send documents. NumNum sends your documents with the UBL file (e-invoicing format) as an attachment, so that Yuki can process them automatically.

💡 Tip: Ask your accountant for the Yuki inbox email address of your file. This usually looks like [filename]@yuki.nl or a similar format.

Exporting documents to Yuki

Manual export

1. Go to the Invoices, Credit Notes or Expenses module
2. Click on Export in the top right
3. Choose Export to accountant
4. Click Next
5. Select the documents you want to export
6. Click Next
7. Enter the Yuki inbox email address (ask your accountant for this)
8. Check the option Export documents in separate emails
9. Click Start export

💡 Tip: By checking “Export documents in separate emails”, each document is sent separately with the UBL file as an attachment. This is required for automatic processing by Yuki.

Automatic export

Your accountant can set up automatic forwarding for your file. This way, sent invoices are automatically forwarded to the Yuki inbox without you having to manually export.

How does this work?

1. Your accountant enters the Yuki inbox email address on your company file
2. Your accountant activates the automatic export feature
3. From that moment on, all sent invoices are automatically forwarded

📞 Contact your accountant to activate automatic forwarding. They can set this up through their accountant portal.

Which documents can you export?

Note: You can only export documents that have already been sent to your customer.

Frequently asked questions

Where can I find the Yuki inbox email address?

The Yuki inbox email address is specific to your file at your accountant. Contact your accountant to request this email address.

Can I enter multiple email addresses?

Yes, you can enter multiple email addresses by separating them with a comma (,) or semicolon (;). This way you can send documents to both Yuki and your own administration at the same time.

Are the documents automatically processed in Yuki?

Yes, because NumNum includes the UBL format (e-invoicing standard) as an attachment, Yuki can automatically read and process the documents. Your accountant does not need to manually type over the data.

What is the difference with other integrations like Clearfacts or Octopus?

• Yuki: Works via email inbox, no direct API integration needed
• Clearfacts/Octopus: Direct integration via API, with synchronisation capabilities

The advantage of the Yuki email method is that no additional integration needs to be set up - you only need the correct email address.

Problems with the export?

Are your documents not arriving in Yuki? Check the following:

• Check if you have used the correct Yuki inbox email address
• Make sure the option “Export documents in separate emails” is checked
• Ask your accountant if the Yuki file is correctly set up to receive emails
• Check the spam folder of the Yuki file

Still not working? Contact us at help@numnum.be.