---
title: Connecting to Payday
keywords: Payday, Payday fjárhagskerfi, accounting integration, invoicing, Client ID, Client Secret, electronic invoices, invoice posting, firm settings, Iceland, billing, Icelandic accounting, cloud accounting
summary: Explains how to select Payday as the invoicing integration in Manor firm settings, configure the Payday connection (Client ID and Client Secret), enable electronic invoices for Icelandic customers, and how invoice posting works once connected.
url: /management/firm
---

# Connecting to Payday

Payday is an Icelandic cloud accounting system. When you select **Payday** as your firm's invoicing integration, Manor posts invoices to Payday as soon as you issue them, so your bookkeeping stays up to date without entering the same invoice twice.

## Why connect to Payday?

- **Automatic posting** — an invoice you issue in Manor is posted to Payday straight away.
- **Less manual entry** — you no longer have to key the same invoice into both Manor and Payday.
- **Faster reconciliation** — invoices and their payment status are kept in step between the two systems.

## Before you begin

- You have a Payday account and the **Client ID** and **Client Secret** for the integration (see [Payday settings](#payday-settings) below).
- You have access to your firm's settings in Manor.

## Selecting Payday as your invoicing integration

1. Go to **Management** → **Firms**.
2. Click your firm's row to open its settings page.
3. Find the **Invoicing setup** section and click **Edit**.
4. In the **Invoicing integration** dropdown, select **Payday**.

   ![Invoicing setup dialog with the Invoicing integration dropdown set to Payday](../screenshots/connecting-to-payday-settings.png)

5. Click **Save**.

Once saved, a **Payday** settings section appears on the firm settings page.

## Payday settings

The **Payday** section holds the connection details Manor uses to reach your Payday account.

### Client ID

The Client ID for the Payday integration. You can find it in your Payday account under **Settings** → **Company** → **Integrations**.

### Client Secret

The Client Secret for the Payday integration, found in the same place in Payday (**Settings** → **Company** → **Integrations**). After you save it, the value is hidden.

### Send Electronic Invoices

Enable this if your customers are registered in Payday to receive electronic invoices. Note that an electronic invoice cannot be created for a customer without an Icelandic identification number (*kennitala*).

## How invoices are handled

Once Payday is connected and configured, you create invoices in Manor in the usual way — see [Invoices](invoices.md) for the full walkthrough.

1. Create the invoice in Manor from a balance as usual.
2. Click **Send invoice now**. Manor posts the invoice to Payday as part of the same action — there is no separate "send to Payday" button.
3. Manor confirms that the invoice was issued, and the invoice PDF produced by Payday can be opened from Manor.
4. The invoice is available in your Payday accounting records.

> **Note:** Invoices issued through Payday are created and delivered by Payday, so they do not appear under **Billing → Delivery**. See [Invoice Delivery](invoice-delivery.md).

> **Could not be verified in this environment:** the steps above reflect how the Payday integration is wired into Manor. A successful end-to-end posting to a live Payday account could not be reproduced here because no valid Payday credentials were available in this test instance. The same applies to the payment status: like the DK integration, Payday reports settlement status back to Manor (settled invoices show as paid), but the exact refresh cadence was not verified here. Confirm both in your own Payday account before going live.

## Best Practices

**Test before going live**

Send a test invoice and confirm it arrives in Payday before using the integration for real invoices.

**Keep credentials secure**

Treat the Client Secret like a password: store it securely and rotate it periodically.

## Related articles

- [Invoices](invoices.md) — the full invoice workflow (balances, form, preview, issuing, delivery and paid or unpaid status).
- [Invoice Setup](invoice-setup.md) — invoicing integration, numbering, delivery and default invoice terms.
- [Invoice Delivery](invoice-delivery.md) — how delivery attempts and failures are tracked.
- [Connecting to Regla](connecting-to-regla.md) — the Regla accounting integration.
- [Connecting to DK](connecting-to-dk.md) — the DK accounting integration.