SharePoint 2013 workflows and add-ins are gone. Here's how to fix what broke.

On April 2, 2026, Microsoft removed two older features from SharePoint Online in every tenant: SharePoint 2013 workflows and SharePoint Add-ins. The older SharePoint 2010 workflows had already been removed in November 2020. There were no extensions.

Signs you were affected

• Approvals or notifications built in SharePoint Designer stopped running.
• Task lists stopped getting new tasks, or status columns stopped updating.
• Custom apps in Site Contents, or parts of pages, show errors or stay blank.
• An integration that signed in to SharePoint as an app started failing. Azure Access Control Services (ACS), which many add-ins used to sign in, was retired on the same dates.

Find everything that depended on them

The free, open-source Microsoft 365 Assessment tool from the PnP community can scan your tenant for SharePoint 2013 workflows and add-ins and report where each one lived. Pair the scan with a quick conversation with each department: which processes do they rely on, and which ones have stopped?

Rebuild workflows in Power Automate

Microsoft's replacement for SharePoint workflows is Power Automate, along with the simple approvals now built into SharePoint lists and libraries. Most old workflows were approvals, notifications, and status updates, which are straightforward to rebuild, and the result is usually better: approvals show up in Teams and Outlook, and everyone can see where a request stands.

Rebuild around how the process works today, not how the old workflow was coded. Old workflows often carry steps that made sense years ago and no longer do.

Replace add-ins

• Custom page components move to the SharePoint Framework (SPFx), Microsoft's current way to extend SharePoint pages.
• Integrations that signed in through ACS move to app registrations in Microsoft Entra ID.
• Small, simple add-ins can often be replaced by an app built in Power Apps and embedded on the page, with no custom code to maintain.

Prioritize by impact

You probably can't rebuild everything at once. Start with the processes that touch money (invoices, purchasing, payroll), then compliance and anything customers see, then internal conveniences. Some of what you find will turn out to be unused, and that part doesn't need rebuilding at all.