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Accounting integration

Pike for Fortnox
invoices out, supplier costs in

Pike integrates with Fortnox: customers, articles, invoices, payments, and supplier invoices sync with Pike, and invoices and customers go from Pike to Fortnox. Supplier invoices become Pike expenses, so project costs sit next to time.

Last updated October 26, 2026 · Read as Markdown

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A Fortnox supplier invoice from Theo Bennett imported into Pike as an expense on Fernwood Patient Portal

At a glance

Direction
Fortnox to Pike for articles, payments, and supplier invoices. Both ways for customers and invoices.
Who sets it up
Workspace admins connect. Admins and finance users change sync settings.
Source of truth
Fortnox, once a record is linked.
Plan
All plans
Documentation
Fortnox docs

What syncs between Fortnox and Pike

FortnoxPikeDirection
CustomersCustomersBoth ways
ArticlesProductsFortnox to Pike
InvoicesInvoicesBoth ways
PaymentsPayments on the invoiceFortnox to Pike
Supplier invoicesExpensesFortnox to Pike

Pike does not set Swedish VAT or ROT/RUT fields. Set them in Fortnox when needed.

Each entity has Read and, where supported, Send toggles. New connections read everything and send invoices only. Customers send When you send it or With its first invoice. Invoices reach Fortnox only when someone sends them: emailing an invoice from Pike does not send it. After an invoice is sent, make changes in Fortnox.

How to connect Fortnox

  1. 1.Go to Workspace settings → Integrations → Fortnox, click Add integration, and authorize Fortnox.
  2. 2.Set Read and Send for each entity in the sync settings card.
  3. 3.Click Import data to bring in customers, articles, invoices, payments, and supplier invoices.

Full setup steps and field mappings are in the Fortnox integration docs.

How agencies use Pike with Fortnox

  • Count supplier costs on projects. Supplier invoices import as expenses, ready to assign to projects, so freelancer spend counts against margin.
  • Bill from tracked time. Invoices built in Pike from billable hours go to Fortnox without re-keying.
  • Keep Swedish bookkeeping in Fortnox. Your accountant keeps VAT and ROT/RUT in Fortnox while delivery leads watch margin in Pike.

Limits to know before you connect

  • Pike does not set Swedish VAT or ROT/RUT fields.
  • Pike cannot create articles in Fortnox.
  • After an invoice is sent to Fortnox, make changes in Fortnox.

Fortnox integration questions

Does Pike integrate with Fortnox?

Yes. Pike syncs Fortnox customers, articles, invoices, payments, and supplier invoices, and sends invoices and customers from Pike to Fortnox.

Does Pike set ROT or RUT on Fortnox invoices?

No. The Fortnox integration does not set Swedish VAT or ROT/RUT fields. Set them in Fortnox when needed.

Do Fortnox supplier invoices show up in Pike?

Yes. The Fortnox integration imports supplier invoices as Pike expenses.

Related

  • TripletexInvoices and supplier invoices.
  • Exact OnlineInvoices with VAT codes from the item.
  • Finance in PikeInvoicing, budgets, and margin by project and client.

See Pike and Fortnox working together on your data.

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