How to use Graph API to update managed metadata / taxonomy term field with allowed 'Fill-in' choices in Sharepoint list item ?

Piotr Kochanowski 21 Reputation points


Is there a way to update a managed metadata (taxonomy term) field with 'Fill-in' choices enabled on a Sharepoint item using MS Graph API ?

I tried using format described on Stack Exchange, but it fails on fields with 'fill-in' option enabled (it works fine for fields without it).
It seems to update the hidden field value, but not the main field.
For example: I have a column named Category, its corresponding hidden field is f31c433462d044e9a7ba5504284940b4. If I call the graph api with body
"f31c433462d044e9a7ba5504284940b4": "xxxxx|6f779592-272e-4f8b-bff3-fcfc3b79bf88;"
then the hidden field value is indeed updated, but the main Category field is not, and it keeps the previous value.

Is it possible to update by Graph API ?

Piotr Kochanowski

Microsoft Graph Site Lists API
Microsoft Graph Site Lists API
A Microsoft API that "supports access to SharePoint sites, lists, and drives; read-only support for site resources; read-write support for lists, listItems, and driveItems; and address resources by SharePoint ID, URL, or relative path.
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Accepted answer
  1. Bhanu Kiran 3,511 Reputation points

    Hello @Piotr Kochanowski ,

    Managed Metadata columns are not yet fully supported in Microsoft Graph.
    Some operations that are not supported by Graph API you can fall back to SPO legacy REST APIs.

    Hope this Helps.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have further questions about this answer, please click "Comment".

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