Issues

• Excel crashes when activating a worksheet, deleting another, and selecting a cell in one batch

  Area: ExcelNeeds: attention 👋
  OfficeDev/office-js#7008 · Filter by author Dykam opened on Oct 13, 2026
  2

  

• Undo breaks after inserting into a textbox that is then deleted

  Area: WordNeeds: attention 👋
  OfficeDev/office-js#7007 · Filter by author JackSteel97 opened on Oct 13, 2026
  2

  

• Excel on the web: Store-installed add-in blank after page refresh (personal account), sideload works

  Area: ExcelNeeds: attention 👋
  OfficeDev/office-js#7006 · Filter by author nkolarevic opened on Oct 13, 2026
  2

  

• LOB add-in manifest update (On-Send → Smart Alerts) not picked up by running clients; no admin-side way to force refresh — new Outlook for Mac + OWA

  Area: OutlookNeeds: attention 👋Type: product bug
  OfficeDev/office-js#7005 · Filter by author cappsicum89 opened on Oct 13, 2026
  

• Classic Outlook on Windows: SoftBlock Smart Alerts add-in that can't load blocks the send ("timed out", Don't Send only) instead of offering Send Anyway / Try Later

  Needs: triage 🔍
  OfficeDev/office-js#7004 · Filter by author recipientguard opened on Oct 13, 2026

• Unified manifest: developer.websiteUrl / contactInfo.defaultSupport do not show a support link in the Office Add-in pane

  Area: add-ins platformStatus: in backlogType: product bug
  OfficeDev/office-js#7003 · Filter by author tranhuyentran23 opened on Oct 13, 2026
  2

  

• PowerPoint for Mac: after a click inside a content add-in during a slide show, arrow keys skip builds and jump whole slides

  Area: PowerPointregressionType: product bug
  OfficeDev/office-js#7002 · Filter by author rhinoboy82 opened on Oct 12, 2026
  2

  

• Outlook: customProperties.saveAsync during appointment compose broke attendee suggestions/autocomplete (new Outlook + OWA, Oct 2026) — fixed?

  Area: Outlook
  OfficeDev/office-js#7001 · Filter by author edvanr opened on Oct 12, 2026
  

• OnMessageSend event not triggered in New Outlook for Mac while same add-in works in OWA and Windows

  Area: Outlook
  OfficeDev/office-js#7000 · Filter by author andreagx opened on Oct 9, 2026
  

• Excel add-in gated behind a flight code continuously requests an update that cannot be completed

  OfficeDev/office-js#6999 · Filter by author valse opened on Oct 9, 2026
  3

  

• ES-MX locale not using the value of generic 'es' defined in the manifest.

  Area: Outlook
  OfficeDev/office-js#6998 · Filter by author glr0221 opened on Oct 9, 2026
  1

  

• [Outlook] Office.context.mailbox.item.body.setAsync breaks cid embedded images (New Outlook Windows)

  Area: Outlook
  OfficeDev/office-js#6997 · Filter by author kstuhs opened on Oct 8, 2026
  

• Excel overwrites API-written formulas with the first formula in a table column

  Area: ExcelNeeds: attention 👋
  OfficeDev/office-js#6996 · Filter by author emerson-abacus opened on Oct 8, 2026
  2

  

• Outlook Addin is not Showing in Mobile outlook Android app

  Area: Outlook
  OfficeDev/office-js#6995 · Filter by author deepakshiva07 opened on Oct 8, 2026
  

• Paragraph.separateList() throws "This command is not available" when the numbered list is directly preceded by a bulleted list

  Area: WordNeeds: attention 👋
  OfficeDev/office-js#6994 · Filter by author fangd1997 opened on Oct 8, 2026
  2

  

• [Excel][Dialog API] Regression in 2609 (16.0.20430): Escape closes the dialog before the page receives the keydown — preventDefault no longer works

  Area: add-ins platformArea: ExcelregressionStatus: under investigation
  OfficeDev/office-js#6992 · Filter by author a9saleh opened on Oct 6, 2026
  3

  

• GCC High add-in deployment fails with FailedWriteToExchange unless EWS is enabled.

  Area: OutlookWin32
  OfficeDev/office-js#6991 · Filter by author glr0221 opened on Oct 6, 2026
  

• [Outlook Classic] Printing mail shows wrong signature under specific circumstances

  Area: Outlook
  OfficeDev/office-js#6990 · Filter by author timnieder opened on Oct 6, 2026
  

• Outlook (new): loadCustomPropertiesAsync fails with error 9020 in a shared mailbox added as an account

  Area: OutlookNeeds: attention 👋New OutlookType: product bugWin32
  OfficeDev/office-js#6989 · Filter by author clavx opened on Oct 5, 2026
  1

  

• Classic Outlook: Office.context.mailbox.item.body.setSelectedDataAsync unexpectedly applies Aptos (Body) 12 formatting

  Area: OutlookNeeds: attention 👋Type: product bugWin32
  OfficeDev/office-js#6988 · Filter by author DmitryKostochko opened on Oct 5, 2026
  1

  

• Workbook.getActiveCell throws "InactiveWorkbook" on Beta but "InvalidSelection" on Monthly Enterprise for an inactive workbook

  Area: ExcelNeeds: attention 👋
  OfficeDev/office-js#6987 · Filter by author vinaykumar-1998 opened on Oct 5, 2026
  4

  

• Runtime logging fails silently when provided relative path

  Area: ExcelNeeds: attention 👋
  OfficeDev/office-js#6985 · Filter by author fabrizio-m opened on Oct 1, 2026
  3

  

• New Outlook: item opened from an .eml file has a non-mailbox GUID itemId, async reads fail with 9020

  Area: Outlook
  OfficeDev/office-js#6984 · Filter by author ngyradi opened on Oct 1, 2026
  

• Excel streaming custom functions with duplicate arguments remain #BUSY! after full recalculation

  Area: custom functionsArea: ExcelStatus: fix pendingStatus: Investigation Completed
  OfficeDev/office-js#6983 · Filter by author demyte opened on Oct 1, 2026
  2

  

• [Outlook Mac] displayNewMessageFormAsync reports success without opening a draft when no message is selected

  Area: OutlookType: product feature request
  OfficeDev/office-js#6982 · Filter by author conner-yang opened on Sep 30, 2026