Copying a DriveItem on SharePoint using PostAsync doesn't work on unique fields

Question

I've raised this issue in other places, and it lead me here

• https://github.com/microsoftgraph/msgraph-sdk-dotnet/issues/790
• https://stackoverflow.com/questions/63847261/copying-file-on-sharepoint-using-graph-api-sdk-doesnt-work-with-unique-fields

The issue is simple.
I want to be able to copy a DriveItem with a unique field to the same folder.

This is currently not possible as the graph API doesn't allow changing the unique field via the copy API.

I'd like the API to support that.

Answer 1

@Eskild Diderichsen ,

The copy a DriveItem in Graph API will also copy the cutom field value. So when you copy within the same folder, it would also duplicate the field for this file and this violate unqiue field rules.

Currenty, you could try to download the file to local, then upload it to the folder.

For the feature request,here is the right place to submit the feedback : https://techcommunity.microsoft.com/t5/microsoft-365-developer-platform/idb-p/Microsoft365DeveloperPlatform

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