---
title: "API.260819-MINOR"
slug: "api-260819-minor"
description: "Enable Single Sign-On for Merchant Backend users with OpenID Connect, streamline access control, and ensure accurate invoice address updates."
updated: 2026-08-17T14:01:22Z
published: 2026-08-17T14:01:22Z
canonical: "help.frisbii.com/api-260819-minor"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.frisbii.com/llms.txt
> Use this file to discover all available pages before exploring further.

# API.260819-MINOR

### 💡 New

#### Single Sign-On for Merchant Backend users

Companies can now connect their identity provider via OpenID Connect (OIDC) to enable Single Sign-On for Merchant Backend users. Administrators configure the connection in the company settings, map identity provider groups to platform groups, and control access through a required access group. Existing users are automatically linked to their SSO identity on first login, and a preview mode lets administrators check the effect of group mappings before activating them.

→ You can find detailed information here: [Set up OpenID Connect login for the Merchant Backend](/frisbii-media/docs/set-up-openid-connect-login-for-the-merchant-backend)

### 🔧 Change

#### Invoice address updates now apply exactly on schedule

When a new invoice address is scheduled to take effect on the same date as a customer's next booking, the new address is now used for that invoice. Previously, the old address was still used in this case. Address changes scheduled for a later date continue to apply only from that date onward.

### 🐛 Fix

**PLEN-11344**: Undoing the cancellation of an issue-based subscription which was set before the last issue of the current period was published, but after the delivery list for that issue had already been created incorrectly failed with an error stating the subscription was partially canceled. This has been fixed, so the cancellation can now be undone successfully in this case.