Skip to main content

This content has been archived and is no longer being updated. Links may not function; however, this content may be relevant to outdated versions of the product.

Support Article

CMIS Connection with ATOM - 403 Forbidden for Sharepoint online



403 Forbidden errors are generated when testing Connect-CMIS rule using ATOM to connect to sharepoint online.

Error Messages

Caught org.apache.chemistry.opencmis.commons.exceptions.CmisPermissionDeniedException when testing connection : Forbidden

Steps to Reproduce

  1. Create Connect-CMIS rule.
  2. Select sharepoint as CMIS Provider.
  3. Select ATOM as server type.
  4. Enter sharepoint atom URI.
  5. Create NTLM authentication profile.
  6. Supply NTLM credentials.
  7. Use NTLM as authentication profile.
  8. Click Test Connection.

Root Cause

CMIS is not supported in Sharepoint online. It works only for on premise.

Check the below article:



Feature not supported.

The CMIS Producer is available by default in SharePoint Server for on-premises deployment.

The Producer creates CMIS-compliant endpoints with which CMIS-compliant consumer web services can inter operate.

CMIS support and the CMIS Producer feature are available on any on-premises SharePoint Server implementation where the CMIS Producer feature is activated.

​CMIS is not supported in SharePoint Online.

Published January 5, 2017 - Updated October 8, 2020

Was this useful?

0% found this useful

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.

Did you find this content helpful?

Want to help us improve this content?

We'd prefer it if you saw us at our best.

Pega Community has detected you are using a browser which may prevent you from experiencing the site as intended. To improve your experience, please update your browser.

Close Deprecation Notice
Contact us