German cloud software developer Nextcloud has filed a complaint about Microsoft with the German competition authority.

According to the developer, Microsoft has a dominant market position, which the company abuses,

Der Spiegel

writes on


Nextcloud believes that the American company is going too far in integrating its own cloud service OneDrive with its Office software packages.

The service is regularly shown to Windows users, for example when saving documents, says Nextcloud.

The cloud software developer's letter to the competition authority states that Microsoft has "created a unique digital ecosystem in several strategically important markets in the digital sector".

Nextcloud points to, among other things, Microsoft's search engine Bing and the meeting app Teams.

The ecosystem would "make it difficult for third parties to compete with Microsoft".

The complaints about Microsoft's market position in Europe are not new.

Last year, work app Slack filed a complaint about Teams with the European Commission.

Slack claims that Microsoft has illegally made its chat service part of the Office suite, so that Microsoft customers cannot get out of it.