Please see the following scheduled Microsoft change:
Date: Between mid-August and mid-September 2025 (An exact implementation date for WSU’s Microsoft environment is unavailable.)
The following work is being completed: Microsoft SharePoint Online is removing retired ASP.NET DISCO and WSDL web pages. ASP.NET web services were retired in 2013 and are likely currently no longer in use.
All affected groups: WSU users who may still be using DISCO and WSDL pages as their web services proxy
All affected processes: Availability of DISCO and WSDL pages in SharePoint Online
Duration of impact: This is a permanent, Microsoft-driven change.
Necessary follow-up steps: Impacted users are advised to use the Microsoft Graph API for remote operations.
Questions? Please contact Crimson Service Desk at crimsonservicedesk@wsu.edu or 509-335-4357.