Control width of office.js add-ins (outlook) task pane

Currently task panes are a fixed width by default. Users can manually increase the width but cannot reduce it. In addition neither users nor their organisations (customers) want to perform a manual a...

AkshaytaRao

Microsoft

Oct 13, 2025

Outlook Extensibility is currently evaluating the feature to allow resizing of the add-in taskpane on Outlook web and New Outlook for Windows. If you are an Outlook add-in developer that is interested in this feature, we'd like to hear from you. Please submit your response in the form below. The form is open till 15th November 2025.

Link - https://forms.office.com/r/wGqMuQQNch

LinusLangner

Copper Contributor

Mar 27, 2026

Hi AkshaytaRao,

we are still desperately waiting for this feature 😥

Any updates on this topic?

Thanks!