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SharePoint metadata fields deleted when item updated

Hi all, 


I'm seeing some odd behavior and hoped someone could tell me what the heck is going on here. I have a a couple flows that I'm working on. In the first of these flows, in a SharePoint document library, I am able to update a metadata field when the item is modified by providing the site URL, list name, and ID, and then specifying the field to update. 


This works as expected. 


Next, I have a SharePoint list that I would also like to update a field on. I created a new flow triggered on item modified, just as above. Interestingly, in the Update Action item on this flow, the Title field is also required:



This list has several other fields that are not appearing here because they are managed metadata fields - based on everything I've read, Flow cannot update managed metadata fields. When this flow runs, it updates the "HdnPrgText" field as expected, but deletes all of the values from my managed metadata columns, and I can't set them to prevent them from being deleted.


Two questions:

1) Am I missing something here that will prevent losing my managed metadata columns on the list item?

2) Why is the behavior different on the list item vs library? I also have managed metadata columns on the library, and the flow has no effect on those columns. 


Any input much appreciated!



Community Support Team
Community Support Team

Re: SharePoint metadata fields deleted when item updated

Hi @Anonymous,


Currently "Managed Metadata" columns in SP are not supported by PowerApps/Flow. This is on the roadmap. Although, we do not have a specific release date to share with you as of yet, please be assured it is not a forgotten ask.


See here:




Community Support Team _ Mona Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Not applicable

Re: SharePoint metadata fields deleted when item updated

Hi @v-monli-msft


Thanks for the response. I understand that managed metadata fields are not supported. However, I would not expect managed metadata values to be deleted from an item when another supported field type is updated. As I've outlined in my original post, I have no trouble updating a supported field type without effecting the values stored in managed metadata columns on a library item. However, in the list, setting the value for a supported metadata column type removes the values I have set for managed metadata. So, to me, this is more than managed metadata not being supported - the ability to update ANY field on an item that contains managed metadata is unsupported?



Level: Powered On

Re: SharePoint metadata fields deleted when item updated

I found the exact behavior today. This seems like a bug, and I can't use flow at all because it's clearing out my MMD fields. Extremely frustrating, as I was going to use flow for a new process, but now I cannot. 

Level: Powered On

Re: SharePoint metadata fields deleted when item updated

I found this post after creating mine, but I put one under 'I found a bug', because I do believe this to be a bug.

Level: Powered On

Re: SharePoint metadata fields deleted when item updated

I realized this is an old post.

I am experiencing the same issue with Sharepoint list.

I am doing an approval flow and i noticed that text column entries are being deleted every time I update the sharepoint list.


We need the entries from those text fields.


Any update on this? 

Super User
Super User

Re: SharePoint metadata fields deleted when item updated

Hey @Jaystechtips 



Could you share your Run of your latest Flow on this?

So we can get some more insights on what could go wrong here.


Kind regards



Did I answer your question? Mark my post as a solution!

Proud to be a Flownaut!

Level: Powered On

Re: SharePoint metadata fields deleted when item updated

Hey @Tom_Slosse 


Its seems I don't have the issue anymore. It might be a cache issue i had yesterday.

Today before testing I cleared my browser's cache. I also tried in incognito mode.


Then I tested the same flow that i am having troubled with. Compared it with the one that was working.

I've put values in those text field manually and also using Powerapps, then i ran the flow.

After each approval step, I check if the values are still there. And after the final approval, the values are not erased


I don't know if its a cache issue or a bug.


Thanks though.

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