Notice history
View current statusJun 2026
- Resolved · UTC
We implemented a fix and are currently monitoring the result. Please close Excel and reopen the binders, and the error should no longer appear.
- Identified · UTC
We're aware of an issue affecting some users when inserting worksheets.
This appears to be caused by a recent change to a Microsoft library and is not related to your Office version or any updates on our side. Microsoft are aware of this and is treating it as a priority.
You can follow Microsoft's progress here: WorksheetProtection.protect() and unprotect() now throw AccessDenied when called on already protected/unprotected worksheets · Issue #6784 · OfficeDev/office-js
We are actively monitoring the situation and will update you as soon as a resolution is available.
- Resolved · UTC
This issue has been resolved. Microsoft confirmed that they have implemented fixes, and we are now seeing updates for add-ins flowing as expected. Please ensure that your team have the standard Workpapers Add-in installed. https://marketplace.microsoft.com/en-us/product/WA200004977?tab=Overview
- Monitoring · UTC
Update: We have released a temporary workaround for the Microsoft deployment issue affecting the Workpapers add-in.
Microsoft has expedited a replacement version of the Workpapers add-in that installs as a new Excel add-in, bypassing the caching and update issues impacting the current version. Internal testing and customer validation have confirmed that it provides the same functionality as the existing add-in.
Customers can deploy the replacement add-in through the Microsoft 365 Admin Centre using the same deployment process as the current add-in. Deployment instructions are available in the knowledge base article below.
https://active-help.businessfitness.com/en/articles/71499-active-workpapers-plus-for-centralised-deploymentWe continue to work with Microsoft while their engineering team investigates and resolves the underlying issue with the original add-in.
- Identified · UTC
We have escalated this issue to Microsoft, who have identified the cause and are working on a fix. We will share more updates as they become available.
- Investigating · UTC
We are aware of an issue affecting some users' ability to access or locate the Active Workpaper Add-in. We are currently investigating and working with Microsoft to resolve this and will continue to update this notice as more information becomes available. We apologise for any inconvenience caused.

