Enable support for Content Management Interoperability Services (CMIS) in SharePoint Online.
CMIS is an open standard maintained by OASIS. Microsoft was one of the original stakeholders in creating this open standard. Microsoft has implemented CMIS support in all recent server versions of SharePoint. Only SharePoint Online does not yet support CMIS. Having this interface would make migration to SharePoint Online much easier as customers could use a tool like OpenCMIS to easily migrate their content and folder structures from their existing content repositories to SharePoint Online.
Nicolas Raoul commented
Microsoft, if you value open standards please implement this.
It would also make it possible to use CmisSync with SharePoint Online.
is this not a thing yet?