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How does the Billit integration work?

Billit is one of the accounting software packages that we have a direct integration with in Robaws.
Thanks to the API integration we have with Billit, these packages work together seamlessly.
From Robaws you can export your incoming and sales invoices to the Billit invoicing platform with a single mouse click.

Activating the integration

Go to settings > integrations > Billit to activate the integration.
You go through the following steps to activate the integration:

You set the integration to active
You are redirected to the Billit login page, where you log in with your Billit credentials
You grant permission to link with Robaws
You choose the Billit company (party) that this Robaws environment has to be linked to

Once you have completed these steps, the integration between Robaws and Billit is active.

Extra settings

There are two more choices on the same page:

Setting	Explanation
Mark sales invoice as sent in Billit by default	If you switch this on, an exported sales invoice is set to 'sent' in Billit straight away. Handy if you already email the invoices to your customer from Robaws yourself.
Use internal invoice number for incoming invoices	By default we export your supplier's invoice number. If you switch this on, Robaws uses its own internal number instead.

Working with several companies

Do you work with several companies in Robaws, and does each company have its own Billit account? Then you set up a separate integration for each company. To do so, click on 'default' in the top left of the settings: there you add an integration per company alongside the default integration.

This is how Robaws chooses which integration is used when exporting an invoice:

If an integration exists for the company on that invoice, that one is used.
If it does not exist, Robaws falls back on the default integration.

If you work with company-specific integrations, we recommend deactivating the default integration, so that an invoice never ends up in the wrong Billit account. Do bear in mind that companies without their own integration can then no longer export anything: you get the message 'Billit not enabled for company'.

What you can do with this integration

With the Billit integration you can send incoming and sales invoices to the accountant.
To do so, you select the invoices you want and click on the send to accountant action button.
The invoice is then created in Billit.

The integration between Robaws and Billit only works in 1 direction, namely from Robaws to Billit. You have to adjust the payments in Robaws yourself to see there which invoices from Billit have already been paid.

Problems

A few problems or error messages may occur when exporting to Billit. Below is an overview of possible problems and error messages, along with the matching solution.

Duplicate customers are created in Billit
Billit recognises customers based on VAT number or email address. If you have not filled in a VAT number or an email address in the customer record in Robaws, duplicate customers may be created every time you export an invoice.

You get the message 'Billit not enabled for company'
The company on this invoice does not have an active Billit integration. Activate an integration for that company, or set the default integration to active again.

Updated on: 09/09/2026

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