If the sharepoint site in part of office 365 this appstore module might help: https://appstore.home.mendix.com/link/app/2053/rond-consulting/Office-365-connector
Otherwise the OAuth module might be the one you need: https://appstore.home.mendix.com/link/app/1414/FlowFabric-BV/Open-Authentication-Module It seems that Sharepoint should be able to handle this.
Regards,
Ronald
Yeah as per Ronald below is the preferable way.
OAuth module might be the one you need: https://appstore.home.mendix.com/link/app/1414/FlowFabric-BV/Open-Authentication-Module It seems that Sharepoint should be able to handle this. If you still need help of SharePoint Developers Services and Development Solutions ping me once.