Unable to select additional channels when posting to multiple channels

Kinga 0 Reputation points
2026-10-03T11:22:34.1833333+00:00

Hello,

I am experiencing an issue with publishing a single post to multiple channels simultaneously in Microsoft Teams. This functionality previously worked correctly, but it has recently stopped functioning as expected.

When composing a new post and using the option to select additional channels, the option itself remains available, and the current channel ("General") is displayed in the field. Previously, when I typed the name of a team, the dropdown list offered the "General" channel of every team whose name contained that text. This no longer happens. Now the search returns only channels from other teams whose own channel name contains the entered text. The "General" channels of teams whose team name contains the entered text do not appear at all. If no channel name matches, the dropdown displays only "We couldn't find any matches," even though I am a member of those teams.

Summary of the problem:

The option to post to multiple channels is still visible, so the feature itself appears to be available.

The search matches only channel names and ignores team names.

The "General" channels of other teams never appear in the results, so I am unable to select them.

Could you please advise whether this may be caused by a recent update, a permission or policy change, or a known issue? If there is a recommended solution or workaround, I would be grateful for any guidance.

Thank you in advance for your assistance.

Microsoft Teams | Microsoft Teams for business | Teams and channels | Other
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  1. Jessica Bourdette 0 Reputation points
    2026-10-07T17:55:03.6166667+00:00

    We are having the same problem in my entire K-12 tenant here in NJ/USA. We found that we can no longer select the small plus sign to get the list of other teams to cross post to. We can only type in to search and select other channels-but the search does not return any of the Teams that our SIS generated for us-only our staff teams are showing. We have recreated this issue on the browser version, desktop version, multiple users on mutliple devices. Our devices are fully updated and restarted multiple times.
    How it used to look:
    User's image

    How it looks now:

    User's image

    Again while the functionality is still present it is altered-not available in a check-all list, and not returning specific teams when typing to search.

    The only solution I have found (that works only to fix the app not the browser) is to do a complete app data cache clear. Then the plus sign comes back and functionality returns to normal. However we are noticing this fix doesn't hold and after a number of days the functionality is lost and requires another cache clear.

    We are all using: You have Microsoft Teams version 26260.1701.5139.3736.

    You've got the latest version. It was last checked on 10/7/2026.

    Please advise on a better long term fix

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  2. EmilyS_726 30,455 Reputation points Volunteer Moderator
    2026-10-04T21:57:54.54+00:00

    Since you mentioned this worked previously, could you check two things for me?

    1. Are the channels you can no longer select Standard, Private, or Shared channels?

    Does the same problem happen in Teams on the web at https://teams.microsoft.com ?

    If the same channels cannot be selected in both the desktop app and Teams on the web, that would point more toward a permission/channel configuration issue. If it works on the web but not the desktop app, then I would suspect a Teams client issue.

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  3. Teddie Dang 1,460 Reputation points Independent Advisor
    2026-10-03T12:01:17.02+00:00

    Hi @Kinga

    I would first recommend checking whether you can manually create a normal post directly in one of the affected destination channels. If you can post there normally, but the same channel does not appear when using Post in multiple channels, this would help rule out a channel-level posting permission or moderation restriction.

    Since you have already reproduced the same behavior in both the Teams desktop client and Teams on the web, it is less likely to be caused solely by a local Teams client or cache issue.

    For comparison, I also tested the same Post in multiple channels functionality in two different Microsoft 365 tenants, and it worked normally in both. This makes a general Teams client issue less likely and may indicate that the issue is specific to the affected tenant, user, or tenant-level configuration.

    You could also test the following to help narrow down the issue:

    • Check whether all destination channels are missing, or only channels belonging to certain Teams.
    • Ask another member of the same Teams to try posting to the same destination channels.
    • Try posting to multiple channels from a different source Team/channel.
    • If possible, check whether the issue affects multiple users in your organization.

    If multiple users are affected, I recommend asking your Microsoft 365 administrator to raise a support request with Microsoft Support, so the issue can be investigated at the service or tenant level.

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