check before: 2025-08-15
Product:
Microsoft Graph, SharePoint
Platform:
Developer, Online, Web, World tenant
Status:
Change type:
User impact, Admin impact, Retirement
Links:
Details:
Summary:
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/).
Details:
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
Change Category:
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Scope:
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Release Phase:
Created:
2025-04-15
updated:
2025-04-15
Task Type
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Docu to Check
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MS Preperations
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MS Urgency
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MS workload name
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summary for non-techies**
Microsoft SharePoint Online will remove DISCO and WSDL pages by mid-September 2025, recommending users transition to Microsoft Graph for more efficient connectivity.
Direct effects for Operations**
Removal of DISCO and WSDL web pages
Users relying on DISCO and WSDL for web service APIs will face disruptions in their applications, leading to potential service outages and inability to access necessary data.
- roles: Developers, IT Administrators
- references: https://devblogs.microsoft.com/microsoft365dev/removal-of-deprecated-disco-wsdl-aspx-pages-from-sharepoint-online/
Transition to Microsoft Graph
Without preparation, users may struggle to transition to Microsoft Graph, resulting in increased support requests and user frustration due to lack of familiarity with the new API.
- roles: Developers, End Users
- references: https://learn.microsoft.com/graph/use-the-api
Increased support workload
The removal of these pages may lead to a spike in support tickets as users encounter issues, overwhelming IT support teams and delaying response times.
- roles: IT Support, Helpdesk Staff
- references: https://devblogs.microsoft.com/microsoft365dev/removal-of-deprecated-disco-wsdl-aspx-pages-from-sharepoint-online/
Integration failures
Existing integrations that depend on DISCO and WSDL will fail, causing disruptions in workflows and business processes that rely on these integrations.
- roles: Business Analysts, Project Managers
- references: https://learn.microsoft.com/graph/use-the-api
User training requirements
Users will require training on Microsoft Graph to effectively utilize the new API, which may not be feasible without prior notice, leading to decreased productivity.
- roles: End Users, Training Coordinators
- references: https://devblogs.microsoft.com/microsoft365dev/removal-of-deprecated-disco-wsdl-aspx-pages-from-sharepoint-online/
Configutation Options**
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Potentional Risks**
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IT Security**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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Last updated 7 days ago
