Business Fitness incident

Known Issue: Error When Inserting Worksheets in Excel

Major Ongoing

Business Fitness is currently experiencing a major incident affecting Active Workpapers (API) and Active Workpapers (API) and 1 more component, which began 4h ago. The vendor's full update timeline is below.

Started
Jun 25, 2026, 11:00 PM UTC
Resolved
Ongoing
Duration
● 3h 30m
Detected by Pingoru
Jun 25, 2026, 11:00 PM UTC

Affected components

Active Workpapers (API)Active Workpapers (API)Active Workpapers (Website)Active Workpapers (Website)Active Workpapers (Add-in)Active Workpapers (Add-in)

Update timeline

  1. identified Jun 25, 2026, 11:00 PM 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](https://github.com/OfficeDev/office-js/issues/6784#issuecomment-4803470467) We are actively monitoring the situation and will update you as soon as a resolution is available.

  2. monitoring Jun 26, 2026, 01:26 AM 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.