Microsoft SharePoint Online: We will remove retired DISCO and WSDL web pages

Originally posted by Microsoft Apr 15, 2025 Uncategorized 0 Comments

Microsoft SharePoint Online will remove retired DISCO and WSDL web pages between mid-August 2025 and mid-September 2025. ASP.NET web services were deprecated in 2013. Users are advised to use Microsoft Graph for remote operations. Learn more [here](https://devblogs.microsoft.com/microsoft365dev/removal-of-deprecated-disco-wsdl-aspx-pages-from-sharepoint-online/).

ASP.NET DISCO and WSDL pages were the web service APIs for customers who wanted to create a proxy for their web services. The retirement of ASP.NET web services was announced in 2013 and should not be used. We recommend using Microsoft Graph for remote operations where possible.

We will remove these pages from Microsoft SharePoint Online starting mid-August 2025 and ending in mid-September 2025.

Learn more: Removal of deprecated DISCO & WSDL aspx pages from SharePoint Online – Microsoft 365 Developer Blog

Message ID: MC1055555

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Joao Ferreira

I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.

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