SharePoint Output Tool Error on Overwrite

Question

I'm using desktop Alteryx version 2021.4.2.05617 and Microsoft SharePoint 365.  The SharePoint Output tool works as advertised when creating a new List, but generates an error when attempting to use the "Update" or "Overwrite" options for the output.  If I delete the existing list and run the workflow, it will successfully create the list, but then when I change it to "Overwrite" the existing List, it generates a "bad request syntax or unsupported method" error.  Any suggestions?

Screenshot 2025-04-22 155852.png

VinodKammula28 · Answer

Hi @pagenix

I hope you're doing well.

Following up on the error you encountered while using the SharePoint Output Tool in Alteryx Designer, I’ve outlined a set of recommended actions that should help resolve the issue and ensure smoother integration with SharePoint Online:

1. Update the SharePoint Output Tool

To ensure compatibility with SharePoint Online and access to the latest functionality and bug fixes, we recommend updating to the latest version of the SharePoint tools.
Download the latest SharePoint Tools from Alteryx Marketplace

2. Upgrade Alteryx Designer

If your environment allows, consider upgrading to Alteryx Designer 2022.1 or later. This release includes improved SharePoint integration, better error handling, and support for more modern authentication methods.
Alteryx Designer 2022.1 Release Notes

3. Implement a Delete + Create Workflow

As a temporary workaround, you can adjust your workflow logic to delete the existing SharePoint list before creating a new one, which avoids the “Overwrite” method that is currently triggering the error.
SharePoint Output Tool Documentation

4. Verify SharePoint Permissions

Ensure the user or service account used in the workflow has appropriate permissions to modify the SharePoint list. At a minimum, “Contribute” or “Edit” permissions are typically required for update or overwrite operations.
Microsoft SharePoint Permissions Overview

5. Enable Detailed Logging

Activating verbose logging in Alteryx Designer can help capture more detailed error messages, making it easier to diagnose and resolve the issue.
How to Enable Engine Logs in Alteryx

6. Configure OAuth 2.0 Authentication

We also recommend ensuring the connection to SharePoint uses OAuth 2.0, which is the supported and secure authentication method for SharePoint Online environments.
Configuring OAuth 2.0 for SharePoint in Alteryx