Note
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Access to this page requires authorization. You can try changing directories.
Important
SharePoint 2013 workflow has been turned off on all newly created tenants since April 2, 2024. It will be removed from all existing tenants on April 2, 2026. See SharePoint 2013 workflow retirement for more information.
Problem
When you try to run a Microsoft SharePoint 2013 workflow in Microsoft SharePoint Online, you receive an error message that resembles the following example:
Retrying last request. Next attempt scheduled after Date/Time. Details of last request: HTTP Unauthorized to SharePointSiteCollectionURL ...Correlation Id: CorrelationId Instance Id: InstanceId.
Cause
Currently, the SharePoint 2013 Workflow Service doesn't provide Trusted Network policy support, such as for IP address restrictions. When the Workflow 2013 makes a call to the Azure Workflow Service, the response is returned to SharePoint Online from a different IP address. This behavior triggers an access request restriction and causes the "unauthorized" error message that is mentioned in the "Symptoms" section.
Solution
To resolve this issue, follow these steps:
Go to your tenant administration:
Locate Access Control.
Under the Control access based on network location setting, clear the Only allow access from specific IP address locations check box.
Note
Currently, there are no persistent lists of the Microsoft 365 Azure Workflow Service endpoints to add to the Allow list.
More information
Still need help? Go to SharePoint Community.