Begin of the insertion### Goal

The file storage module will be extended by more file storage types. The start is set withEnd of the insertion Begin of the deletion **As** a project manager
**I want to** have anEnd of the deletion MS SharePoint Begin of the insertionand OneDrive, which will be selectable beside the currently only available type "Nextcloud". The storage representation onEnd of the insertion Begin of the deletion integration inEnd of the deletion OpenProject Begin of the insertionsite will represent the feature set, weEnd of the insertion Begin of the deletion
**so that** IEnd of the deletion can Begin of the insertionprovide forEnd of the insertion Begin of the deletion manage workflows in OpenProject and leverageEnd of the deletion the Begin of the insertionselected storage. This is highly dependent on the API each storage type provides.End of the insertion Begin of the deletion document management options provided by SharePoint.End of the deletion

Begin of the insertion### Acceptance criteriaEnd of the insertion Begin of the deletion **Acceptance criteria**End of the deletion

* Begin of the insertionA list of criteria for new file storage integrations is created and publicly available.
* IfEnd of the insertion Begin of the deletion Option to updateEnd of the deletion the Begin of the insertionadmin user creates a new storage, the storage types "SharePoint" and "OneDrive" must be selectable.
* A user must be able to browse a storageEnd of the insertion Begin of the deletion statusEnd of the deletion of Begin of the insertiontype "SharePoint" and "OneDrive" from within OpenProject.
* A user must be able to link files onEnd of the insertion a Begin of the insertionstorage of type "SharePoint" and "OneDrive" toEnd of the insertion work Begin of the insertionpackages from within OpenProject.

### Check list for new storage integrations

We intend to create a check list for new storage integrations. This list should be usable to investigate any file storage and the feasibility of extending the OpenProject "File Storages" module to integrate it. Only basic functionality is part of the check list, as the current state of the Nextcloud integration includes use cases, that are very specific. The check list will contain detailed requirements regarding the following use cases.

* Authentication (one direction, OpenProject needs to authenticate against the file storage)End of the insertion Begin of the deletion package when making changes in SharePointEnd of the deletion
* Begin of the insertionFile structure discoverability
* Reading file metadata
* unique file identification
* file down- and uploadEnd of the insertion Begin of the deletion _..._End of the deletion

### What is outdated?

* this Epic no longer contains the management of the sharepoint "document workflow"
* the focus is on making sharepoint and onedrive available as file storages as they are, without the nextcloud specific use cases.