We have observed the sharepoint online site collection creation service stopped working since week which is implemented using PnP site provisioning.

[prasadswarna]

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####Which PnP repository should you use to report the issue?####
https://github.com/pnp/PnP/tree/master/Solutions/Provisioning.Framework.Cloud.Async

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Category

Bug

Environment

[ ] Office 365 / SharePoint Online

If SharePoint on-premises, what's exact CU version:

Expected or Desired Behavior

We have observed the sharepoint online site collection creation service stopped working since week which is implemented using PnP site provisioning.
o https://github.com/pnp/PnP/tree/master/Solutions/Provisioning.Framework.Cloud.Async
o We’ve not amended it for over for some time – it was put in in 2016 and has been fine for the last 4 years
o 4 to 5 days ago it stopped working
o We have verified client id and secret – all valid
o Request are processed Asynchronously using Azure storage and Azure web jobs

Observed Behavior

We have observed the sharepoint online site collection creation service stopped working since week which is implemented using PnP site provisioning.

Steps to Reproduce

By Clicking on Site provisioning app, error getting some thing went wrong
By debugging the code, we have observed 401 Authentication error, remote server returned error

Submission Guidelines

Delete this section after reading

• We haven't made any changes to the existing solution since long back so we are suspecting some changes some issue with Azure ACS.
  -We’ve not amended it for over for some time – it was put in in 2016 and has been fine for the last 4 years
• 4 to 5 days ago it stopped working
• We have verified client id and secret – all valid
• Request are processed Asynchronously using Azure storage and Azure web jobs
• Attached error screenshots .

This is high priority, we need support as ASAP as it is critical and impacting business users.

Thanks for your contribution! Sharing is caring.

[prasadswarna]

Can some one please help/suggest to resolve this issue?

[russgove]

could it be this? (Literally) Breaking: Changes to app authentication on SharePoint! 😵 (koskila.net) <https://www.koskila.net/literally-breaking-changes-to-app-authentication-on-sharepoint-%f0%9f%98%b5/>

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On Fri, May 7, 2021 at 9:42 AM prasadswarna ***@***.***> wrote: Can some one please help/suggest to resolve this issue? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1948 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AASNDHHKRBTJVSEVBW3UNGTTMPU35ANCNFSM44EB2RFA> .

[prasadswarna]

Hello russgove,

Thanks for your response. I have gone through the above mentioned reference, it looks app authentication stopped working for new tenants.
we have raised case with MS for further support on the app authentication failure.

[zeeshantc]

Hi @prasadswarna did you get this resolved. Im having a similar issue.

Thanks

[prasadswarna]

Hi Zee,

We were unable to resolve the issue as of now. Working on TSL upgrading for the site provisioning service leading to other issues.
Expecting some update by next week so will keep post update.
As per MS recommended, supporting to TLS1.0 and 1.1 has been out of scope.

[zeeshantc]

Thanks for quick reply on this, looking forward to your update.