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Power Platform Community / Forums / Power Automate / Action 'Post_a_feed_no...
Power Automate
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Action 'Post_a_feed_notification' failed

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Posted on by 26
Action 'Post_a_feed_notification' failed
error : The provided flow name '<null>' is not valid.



how to fix it ,Previously, it was working fine.
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I have the same question (0)
  • CH-04102120-0 Profile Picture
    3 on at
    I recently saw this error start happening on two flows where I use the "Post a feed notification" action.
     
    Prior to today they worked fine (even having run multiple times successfully before this). Nothing has changed in my flows, and I can't seem to find any information about this type of error.

    PLEASE HELP!

  • jb_tw Profile Picture
    7 on at
    Unfortunately, my users and I seem to be experiencing the same issue described by OP and in CH-04102120-0's post.
     
    Several end users are expectant of alerts that are automatically posted using a Power Automate flow that utilises 'Post a feed notification'.
     
    This morning, users have reported that notifications stopped very recently and investigating the flow, I see...
    • Action 'Post_a_feed_notification' failed: The provided flow name '<null>' is not valid.
    • statusCode 400
    • Error: "code": "MissingFlowName" | "message": "The provided flow name '<null>' is not valid."
    The flow has not been edited since it's creation months ago, and all inputs are as they were; contributory information and data structure is unchanged.
  • HK-08101440-0 Profile Picture
    2 on at
    I too am facing the same issue with a "Follow up on a message" Power Automate template.

    It was working till Oct 2nd 2024. I was receiving workflow notifications for the messages to follow up. But not since then.

    Curiously, a daily scheduled Flow is working well where I post some message in a Teams group chat every workday. But not Follow up on a message.
     
    Any solutions? I have not made any changes. 
     
    I tried to setup a new Flow but even that is not working.
     
    Power Automate is really important for our team! Please help!!!
  • JF-14100955-0 Profile Picture
    2 on at
    Hi everyone,

    Same problem for me, everything worked fine, but since the 10/10, the  error message appear with no solution.

    Nothing change.
  • Tracy_919 Profile Picture
    2 on at
    Same issue I am seeing as well. Anyone find a fix?
  • hubertlam Profile Picture
    153 on at
     
     
    16 days since it's been reported as broken, and radio silence :(
  • RM-18101525-0 Profile Picture
    5 on at
    Hi all.

    As additional information I can give two examples of failed attempts at my side to fix this.
    What I did was as follows:
    • Post as parameter: filled with my User ID
    • Notification Type: Team
    • Post feed notification request: here I tried two possible JSON based on the previously sucessfull executions
      • 1st JSON
      • {
            "recipient": "<MY_EMAIL>",
            "message": "New alert received",
            "previewText": "[14.10.2024 06:17:33]  Alert for system",
            "groupId": "<MY_TEAM_ID>",
            "channelId": "<CHAT_ID>"
        }

      • 2nd JSON
      • {
            "recipient": "<MY_EMAIL>",
            "message": "New alert received",
            "previewText": "[14.10.2024 06:17:33]  Alert for system",
            "channelRecipient/groupId": "<MY_TEAM_ID>",
            "channelRecipient/channelId": "<CHAT_ID>"
        }
        • recipient comes from action to get my user details
        • groupId comes from action to get Microsoft Team id
        • channelId comes from the URL of the chat on Microsoft teams

    For both cases I don't get the error of the flow but another one "Object reference not set to an instance of an object.". This would indicate a bad JSON, but there's no documentation on what's the correct way to fill the parameters
    Thank you
  • VS-23100852-0 Profile Picture
    3 on at
    Started facing the same issue since 30 Sept, 2024. Seems like a breaking API change was rolled out around this date and started impacting flows that are using the Post a Feed Notification operation. The documentation isn't updated with any mandatory fields for sending the flow name either: https://learn.microsoft.com/en-us/connectors/teams/?tabs=text1%2Cdotnet#definitions:~:text=PostFeedNotification

    Someone knows how this breaking change can be reported to Microsoft?
  • MS-23101941-0 Profile Picture
    2 on at
    I am also having this issue. I hope that there is a resolution for this or if anyone has had one that works for them, they can update. 
  • CS-24101916-0 Profile Picture
    2 on at
    I'm just adding that I am experiencing the same issue.  The provided flow name '<null>' is not valid when using the Follow up on a message in Teams.
     

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