Optional Message setting 500 Character Limit in File Sharing

ZTS 65 Reputation points
2026-09-08T13:22:57.1033333+00:00

Optional Message setting 500 Character Limit in File Sharing - is this still a limitation? Any workaround? Please provide Microsoft URL about this limitation

Microsoft 365 and Office | SharePoint | For business | Other
0 comments

1 answer

Sort by: Newest
Most helpful Newest Oldest
  1. Jayden-P 2,520 Reputation points Independent Advisor
    2026-09-08T13:28:56.9666667+00:00

    Hi @ZTS

    The Optional Message field in the SharePoint Online/OneDrive sharing dialog is limited to 500 characters. This is a service limitation and cannot currently be increased. As a workaround, you can share the file first and then send a separate email or Teams message containing the full details and the sharing link.

    I have not been able to locate an official Microsoft documentation page that explicitly states the 500-character limit for the Optional Message field when sharing files in SharePoint Online or OneDrive.

    However, the limitation is visible directly in the sharing dialog. In the screenshot provided, the message field displays a counter of 490/500, indicating that the maximum supported length is 500 characters.

    User's image

    I also found an existing Feedback Portal suggestion requesting an increase to the sharing invitation message character limit: Increasing Message Character Limit

    You can also consider upvoting this feedback.

    Was this answer helpful?

    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.