--- title: "API.260527-MINOR" slug: "api-260527-minor" updated: 2026-05-27T08:04:01Z published: 2026-05-27T08:04:01Z canonical: "help.frisbii.com/api-260527-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.260527-MINOR ### 💡 New #### Streilinger Partner API for partner module We now provide the partner module Streilinger Connection for a fee in the Merchant Backend to activate. You can find more information on Streilinger here: [Streilinger](https://streilinger.de/) If you want to connect Frisbii Media with the Streilinger interface, you can find the Streilinger partner API endpoints all documented here: [Streilinger Partner API](https://partner-api.frisbii-media.com/#tag/Access-Rights-(ST)) --- ### 🐛 Fix **PLEN-11097**: For issue-based subscriptions, cancelling at the end of the current billing period could, in certain cases, cancel or modify the wrong invoice when a future accounting period already existed. This has been corrected: the invoice for the current accounting period remains unchanged, and the invoice for the next accounting period will only include charges up to the cancellation date when it is created.